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.
[[-75, -184, 23, -24, -180, -159], [-63, 52, -7], [-83, 11], [-87, -52]]