Finding the Fourth Proportional to 12,057.98, 16,640.52 and 7,459.76

Step by Step Solution

1. Step 1: Write the proportion equation
   12,057.98 : 16,640.52 = 7,459.76 : x
2. Step 2: Convert to fraction form
   12,057.98/16,640.52 = 7,459.76/x
3. Step 3: Cross multiply
   12,057.98x = 16,640.52 × 7,459.76
4. Step 4: Simplify right side
   12,057.98x = 124,134,285.48
5. Step 5: Solve for x
   x = 124,134,285.48/12,057.98
6. Step 6: Final answer
   x = 10,294.78