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.
[[73, 34, -108, -189, 65], [44, -171, -64, 39], [-78, -147, -179, -164, -98], [-158, 24, -160, 68, -74]]