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.
[[-79, -50, -49, 57, -110, -78, -180], [-119, -90, 40], [81, -55, -64, -19], [17, -42, -76, -136, -58], [-74, 4, -161, -72]]