Finding the Fourth Proportional to 11,224.85, 15,475.91 and 9,200.82

Step by Step Solution

1. Step 1: Write the proportion equation
   11,224.85 : 15,475.91 = 9,200.82 : x
2. Step 2: Convert to fraction form
   11,224.85/15,475.91 = 9,200.82/x
3. Step 3: Cross multiply
   11,224.85x = 15,475.91 × 9,200.82
4. Step 4: Simplify right side
   11,224.85x = 142,391,016.24
5. Step 5: Solve for x
   x = 142,391,016.24/11,224.85
6. Step 6: Final answer
   x = 12,685.34