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.
[[-180, -178, -112, -138], [-67, 17, -43, -103, -85, -174, 13], [-40, -69, -159], [31, -65, 46, -91, -84], [-69, -151], [-26, -42, -28], [-92, -39, 89, -137]]