Finding the Fourth Proportional to 72,000.05, 99,397.43 and 52,597.18

Step by Step Solution

1. Step 1: Write the proportion equation
   72,000.05 : 99,397.43 = 52,597.18 : x
2. Step 2: Convert to fraction form
   72,000.05/99,397.43 = 52,597.18/x
3. Step 3: Cross multiply
   72,000.05x = 99,397.43 × 52,597.18
4. Step 4: Simplify right side
   72,000.05x = 5,228,023,757.27
5. Step 5: Solve for x
   x = 5,228,023,757.27/72,000.05
6. Step 6: Final answer
   x = 72,611.39