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.
[[-138, -170], [26, -38, -37], [81, -194, -109], [-30, 1, -111, 89]]