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.
[[-142, -137, -17], [68, 46, -73, 20, -144, 5, 38], [58, -4], [-71, 89, -111, -42, 96, -36], [-121, -105, 15, -56, -60, -59], [89, 98]]