Answer
6185.5
Work Step by Step
Write the list in sorted order and find the item(s) in the center of the list.
$4111, 5050, 5855, 5910, 6060, \underset\uparrow 6091, \underset\uparrow 6280, 7102, 7112, 9020, 10171, 10172$
Since this set contains an even number of items, find the mean of the 2 center items to determine the median.
$\frac{6091+6280}{2}=\frac{12371}{2}=6185.5$