Finding the Fourth Proportional to 522,061.10, 729,310.90 and 522,061.10

Step by Step Solution

1. Step 1: Write the proportion equation
   522,061.10 : 729,310.90 = 522,061.10 : x
2. Step 2: Convert to fraction form
   522,061.10/729,310.90 = 522,061.10/x
3. Step 3: Cross multiply
   522,061.10x = 729,310.90 × 522,061.10
4. Step 4: Simplify right side
   522,061.10x = 380,744,850,695.99
5. Step 5: Solve for x
   x = 380,744,850,695.99/522,061.10
6. Step 6: Final answer
   x = 729,310.90