Finding the Fourth Proportional to 72,096.62, 108,144.90 and 52,499.88

Step by Step Solution

1. Step 1: Write the proportion equation
   72,096.62 : 108,144.90 = 52,499.88 : x
2. Step 2: Convert to fraction form
   72,096.62/108,144.90 = 52,499.88/x
3. Step 3: Cross multiply
   72,096.62x = 108,144.90 × 52,499.88
4. Step 4: Simplify right side
   72,096.62x = 5,677,594,272.61
5. Step 5: Solve for x
   x = 5,677,594,272.61/72,096.62
6. Step 6: Final answer
   x = 78,749.80