Finding the Fourth Proportional to 18,459.89, 25,472.34 and 10,502.25

Step by Step Solution

1. Step 1: Write the proportion equation
   18,459.89 : 25,472.34 = 10,502.25 : x
2. Step 2: Convert to fraction form
   18,459.89/25,472.34 = 10,502.25/x
3. Step 3: Cross multiply
   18,459.89x = 25,472.34 × 10,502.25
4. Step 4: Simplify right side
   18,459.89x = 267,516,702.89
5. Step 5: Solve for x
   x = 267,516,702.89/18,459.89
6. Step 6: Final answer
   x = 14,491.78