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.
[[-18, -96], [-158, -186, -138, -170, 53], [20, -200], [-138, -3], [29, -75, -31, -60, -7, 87], [-104, -92, 85, -155, 53, -86, -64], [-6, 12, -101, -178, -56]]