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.
[[-44, -88, -134, -89, -187, 59], [-23, -80, 32, -168, -2], [-109, -119, -173, -15, -164]]