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.
[[-151, 55, -28, -21, -38, 39, -158], [0, -148, 34, 81, 56, 41], [-69, 79, -72, -181, 78]]