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.
[[-52, 31], [-152, 77], [35, -106, -49], [-72, 84, -128], [-26, 40, -161, -53, 64, 1], [-51, -177, -57, -123, 97, -131], [30, 11, -26, 55, -21], [-159, -128, 55]]