You can do a few calculations using the independent chip model. You have aces but 3 opponents. Therefore your chance of winning is limited. But what
hands do your opponents go all-in with? I think most of the hands they would play would be dominated by AA. I'll give you the hand range TT +, AKs, AKo. You dominate every hand. You probably have 60%
equity. And even if you add a couple of suited connectors like QJs, JTs, T9s, 87s to your opponents hand ranges, you are clearly ahead with 58% equity. Let's make a few more assumptions about the stacks of you and your opponents. Let's say you're fourth in chips:
Villian1 230,000,000
Villian2 171,000,000
Villian3 66,000,000
Hero 45,000,000
The ICM model can be used to calculate the money value of the chips:
Villian1 $ 7,318,862
Villian2 $ 6,629,562
Villian3 $ 4,793,873
Hero $ 4,257,701
If you call and lose you are out.
If you call and win, your stack of chips is worth this:
Villian1 $ 6,981,733
Hero $ 6,270,
888
Villian2 $ 6,123,691
Villian3 $ 3,623,686
The calculation looks like this:
EV = 58% * $ 4.26 million + 42% * $ 6.12 million = $ 5.04 million
The value of your chips is much higher when you call. So call accordingly in any case.