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.
[[-110, -173], [12, 37, -136, -70, -108], [-114, 0, -48, -74], [24, -48, -112, -166, -21, -28]]