The ornamental design for a mobile utility scaffold with cross textured rungs, as shown and described.
FIG. 1 is a front perspective view of a mobile utility scaffold with cross textured rungs, the broken lines showing wheels are for illustrative purposes only and form no part of the claimed design;
FIG. 2 is a rear perspective view thereof;
FIG. 3 is an enlarged, fragmentary, elevational view of portion of a an end rung showing the cross texture of the end rung; and,
FIG. 4 is a cross-sectional view taken along the line 4--4 in FIG. 3.