Finding the Fourth Proportional to 72,872.89, 109,176.17 and 52,832.70

Step by Step Solution

1. Step 1: Write the proportion equation
   72,872.89 : 109,176.17 = 52,832.70 : x
2. Step 2: Convert to fraction form
   72,872.89/109,176.17 = 52,832.70/x
3. Step 3: Cross multiply
   72,872.89x = 109,176.17 × 52,832.70
4. Step 4: Simplify right side
   72,872.89x = 5,768,071,572.60
5. Step 5: Solve for x
   x = 5,768,071,572.60/72,872.89
6. Step 6: Final answer
   x = 79,152.50