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.
[[14, -82, -42, -93, -21, -177, 51], [-138, -64, -74, 9, 80, -47, -90], [-173, -165, -102, -41]]