Finding the Fourth Proportional to 72,934.20, 109,158.30 and 52,886.70

Step by Step Solution

1. Step 1: Write the proportion equation
   72,934.20 : 109,158.30 = 52,886.70 : x
2. Step 2: Convert to fraction form
   72,934.20/109,158.30 = 52,886.70/x
3. Step 3: Cross multiply
   72,934.20x = 109,158.30 × 52,886.70
4. Step 4: Simplify right side
   72,934.20x = 5,773,022,264.61
5. Step 5: Solve for x
   x = 5,773,022,264.61/72,934.20
6. Step 6: Final answer
   x = 79,153.84