The ornamental design for a mounting apparatus, as shown and described.
FIG. 1 is a perspective view of the mounting apparatus showing the design;
FIG. 2 is a front elevational view of the mounting apparatus of FIG. 1;
FIG. 3 is a back elevational view of the mounting apparatus of FIG. 1;
FIG. 4 is a right elevational view of the mounting apparatus of FIG. 1;
FIG. 5 is a left elevational view of the mounting apparatus of FIG. 1;
FIG. 6 is a top plan view of the mounting apparatus of FIG. 1; and,
FIG. 7 is a bottom plan view of the mounting apparatus of FIG. 1.
The dash-dash broken lines in the drawings depict portions of the mounting apparatus that form no part of the claimed design. The long dash-long dash broken lines in the drawings define the boundaries of the claim and form no part thereof.