Finding the Fourth Proportional to 9,229.16, 12,736.27 and 5,250.55

Step by Step Solution

1. Step 1: Write the proportion equation
   9,229.16 : 12,736.27 = 5,250.55 : x
2. Step 2: Convert to fraction form
   9,229.16/12,736.27 = 5,250.55/x
3. Step 3: Cross multiply
   9,229.16x = 12,736.27 × 5,250.55
4. Step 4: Simplify right side
   9,229.16x = 66,872,422.45
5. Step 5: Solve for x
   x = 66,872,422.45/9,229.16
6. Step 6: Final answer
   x = 7,245.78