Finding the Fourth Proportional to 52,810.38, 72,878.32 and 28,937.96

Step by Step Solution

1. Step 1: Write the proportion equation
   52,810.38 : 72,878.32 = 28,937.96 : x
2. Step 2: Convert to fraction form
   52,810.38/72,878.32 = 28,937.96/x
3. Step 3: Cross multiply
   52,810.38x = 72,878.32 × 28,937.96
4. Step 4: Simplify right side
   52,810.38x = 2,108,949,909.03
5. Step 5: Solve for x
   x = 2,108,949,909.03/52,810.38
6. Step 6: Final answer
   x = 39,934.38