Finding the Fourth Proportional to 13,061.24, 18,024.16 and 7,092.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,061.24 : 18,024.16 = 7,092.72 : x
2. Step 2: Convert to fraction form
   13,061.24/18,024.16 = 7,092.72/x
3. Step 3: Cross multiply
   13,061.24x = 18,024.16 × 7,092.72
4. Step 4: Simplify right side
   13,061.24x = 127,840,320.12
5. Step 5: Solve for x
   x = 127,840,320.12/13,061.24
6. Step 6: Final answer
   x = 9,787.76