Finding the Fourth Proportional to 52,807.35, 72,874.04 and 28,934.79

Step by Step Solution

1. Step 1: Write the proportion equation
   52,807.35 : 72,874.04 = 28,934.79 : x
2. Step 2: Convert to fraction form
   52,807.35/72,874.04 = 28,934.79/x
3. Step 3: Cross multiply
   52,807.35x = 72,874.04 × 28,934.79
4. Step 4: Simplify right side
   52,807.35x = 2,108,594,899.18
5. Step 5: Solve for x
   x = 2,108,594,899.18/52,807.35
6. Step 6: Final answer
   x = 39,929.95