Finding the Fourth Proportional to 12,399.12, 17,109.90 and 7,363.08

Step by Step Solution

1. Step 1: Write the proportion equation
   12,399.12 : 17,109.90 = 7,363.08 : x
2. Step 2: Convert to fraction form
   12,399.12/17,109.90 = 7,363.08/x
3. Step 3: Cross multiply
   12,399.12x = 17,109.90 × 7,363.08
4. Step 4: Simplify right side
   12,399.12x = 125,981,562.49
5. Step 5: Solve for x
   x = 125,981,562.49/12,399.12
6. Step 6: Final answer
   x = 10,160.52