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.
[[-72, 32, 74, -114, 40, 64], [-77, 91, 95, 70, -20], [36, 73, -132], [-156, -114, -162, -58, -128, 79], [-176, -158, -60, 82, -30, 60, -139]]