In this task, you are given a list. This list contains many lists of integers. The list is several items written within a []. Your task is to find the maximum number among the members of each inner list. The output should be a list comprised of the maximums with the same order as the internal lists.
[[-185, -38, -107, -122, 77, -48, 34], [30, 89, 62, -24, -190, -87, -168], [-121, 26, -154], [-185, -146, -150, -74, 43, -21]]