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.
[[-174, -185, -66, 30, 52, 72], [-109, -162, -188, -197, -9], [-113, -38, -28, -170]]