Imagine that a human skin cell went through mitosis but did not undergo cytokinesis. how many chromosomes would be in the cell?

The answer is 92 chromosomes or 46 chromosomes in each daughter cell. If Mitosis occurred then there are now two sets of chromosomes already regardless if it undergoes cytokinesis or not. Cytokinesis is only process of physical separation. The division of cell into daughters cell is done in mitosis.