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.
[[-74, 60, -84, -17, -180], [-27, -74, 36, -80, 5, -61, -138], [92, -60, -188, 60]]