Finding the Fourth Proportional to 52,385.92, 72,291.56 and 28,513.12

Step by Step Solution

1. Step 1: Write the proportion equation
   52,385.92 : 72,291.56 = 28,513.12 : x
2. Step 2: Convert to fraction form
   52,385.92/72,291.56 = 28,513.12/x
3. Step 3: Cross multiply
   52,385.92x = 72,291.56 × 28,513.12
4. Step 4: Simplify right side
   52,385.92x = 2,061,257,925.27
5. Step 5: Solve for x
   x = 2,061,257,925.27/52,385.92
6. Step 6: Final answer
   x = 39,347.56