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.
[[75, -100, -196, -141, 57], [-59, 30, -19], [-172, -82, -147, -97, 90, -191], [39, -149, 77, 62, -82], [92, -70, -78, -112, -178], [93, 31, 97, 4]]