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.
[[-140, -111, 66], [-115, -45, -50, -182, -180, -160, 12], [32, -119, 98], [64, -22, -56], [-189, -160, -56], [-16, 39, 72, 30, -68, 74, 23]]