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.
[[-13, -52, -15], [1, 77], [-52, 36, -175, -7], [-198, -129, -162, -64, 74], [-172, 10, -93, 61], [-52, -53, 0, -19]]