Finding the Fourth Proportional to 72,702.96, 108,879.45 and 49,258.32

Step by Step Solution

1. Step 1: Write the proportion equation
   72,702.96 : 108,879.45 = 49,258.32 : x
2. Step 2: Convert to fraction form
   72,702.96/108,879.45 = 49,258.32/x
3. Step 3: Cross multiply
   72,702.96x = 108,879.45 × 49,258.32
4. Step 4: Simplify right side
   72,702.96x = 5,363,218,789.52
5. Step 5: Solve for x
   x = 5,363,218,789.52/72,702.96
6. Step 6: Final answer
   x = 73,768.92