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.
[[12, -88, 31, -91, 85, -164], [-63, -142, -35, 17, 55, 28, -87], [-70, -33, -145, 66], [-13, -45, -3, -75, 73, -67], [-185, -63, -193]]