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.
[[17, -117, -164, 48, -184], [11, -189, -31, -179, -115, 24, 51], [-116, -49, 7, -173, -93, -45], [80, -161, -103, -23, 74]]