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.
[[-9, -117, -15, 36, -62, 49, -87], [-169, 79, 48, 59, -122, -181, 2], [-162, 4, 8], [-86, 70, -185, -115, -70]]