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.
[[87, -148, -136, -173], [-146, -74, 67, -35, -107, 91], [-174, 16], [-10, -149, -49, 3, 15], [-169, -102, -58, -87, -129, -7], [-199, -28, -96, -145]]