[tewall]

I misread this when I first read it. I thought the second biggest stack was the one that went all-in. That's a more difficult question.

Here even if you lose, you've got enough chips to likely finish in the money, especially given that you play better than your opponents.

Your tournament equity if you fold is 23%. If you call and win, 34%; call and lose 15%. If you win 45% of the time, you'll break even. From the way you described things, you're probably better than 60% to win here, so calling is +EV by a lot, probably raising your equity to about 27%.