Finding the Fourth Proportional to 12,502.20, 17,256.88 and 7,200.54

Step by Step Solution

1. Step 1: Write the proportion equation
   12,502.20 : 17,256.88 = 7,200.54 : x
2. Step 2: Convert to fraction form
   12,502.20/17,256.88 = 7,200.54/x
3. Step 3: Cross multiply
   12,502.20x = 17,256.88 × 7,200.54
4. Step 4: Simplify right side
   12,502.20x = 124,258,854.72
5. Step 5: Solve for x
   x = 124,258,854.72/12,502.20
6. Step 6: Final answer
   x = 9,938.96