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.
[[90, 15], [-4, -32], [-14, -7, -188, -117], [-76, -184, -103, 19], [-186, -42, 22, -128, -135, 90, -29], [-137, 24, -169, 23, -133]]