Finding the Fourth Proportional to 12,545.52, 17,311.56 and 7,242.04

Step by Step Solution

1. Step 1: Write the proportion equation
   12,545.52 : 17,311.56 = 7,242.04 : x
2. Step 2: Convert to fraction form
   12,545.52/17,311.56 = 7,242.04/x
3. Step 3: Cross multiply
   12,545.52x = 17,311.56 × 7,242.04
4. Step 4: Simplify right side
   12,545.52x = 125,371,009.98
5. Step 5: Solve for x
   x = 125,371,009.98/12,545.52
6. Step 6: Final answer
   x = 9,993.29