Finding the Fourth Proportional to 11,239.25, 15,502.12 and 7,882.81

Step by Step Solution

1. Step 1: Write the proportion equation
   11,239.25 : 15,502.12 = 7,882.81 : x
2. Step 2: Convert to fraction form
   11,239.25/15,502.12 = 7,882.81/x
3. Step 3: Cross multiply
   11,239.25x = 15,502.12 × 7,882.81
4. Step 4: Simplify right side
   11,239.25x = 122,200,208.09
5. Step 5: Solve for x
   x = 122,200,208.09/11,239.25
6. Step 6: Final answer
   x = 10,872.63