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.
[[-44, -68, 31, -143, -143, -158], [-62, 39, -113, -99, -169, 30, -178], [-163, 70, -91], [-159, -120, -178, -137], [21, 61, 99, -92, -36], [-122, -61, -159, -117]]