Finding the Fourth Proportional to 11,724.24, 16,174.92 and 7,240.29

Step by Step Solution

1. Step 1: Write the proportion equation
   11,724.24 : 16,174.92 = 7,240.29 : x
2. Step 2: Convert to fraction form
   11,724.24/16,174.92 = 7,240.29/x
3. Step 3: Cross multiply
   11,724.24x = 16,174.92 × 7,240.29
4. Step 4: Simplify right side
   11,724.24x = 117,111,111.53
5. Step 5: Solve for x
   x = 117,111,111.53/11,724.24
6. Step 6: Final answer
   x = 9,988.80