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.
[[-107, 20, -117, -199, -29, -69], [-26, -6, -86, -122, -78], [-65, -39, 83], [39, -157, -145, -2, 43, -172]]