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.
[[89, 59], [-74, -172, -13, -90], [-167, -22, 50], [-54, -48, -127, 92]]