Finding the Fourth Proportional to 18,455.72, 25,469.34 and 10,498.82

Step by Step Solution

1. Step 1: Write the proportion equation
   18,455.72 : 25,469.34 = 10,498.82 : x
2. Step 2: Convert to fraction form
   18,455.72/25,469.34 = 10,498.82/x
3. Step 3: Cross multiply
   18,455.72x = 25,469.34 × 10,498.82
4. Step 4: Simplify right side
   18,455.72x = 267,398,016.18
5. Step 5: Solve for x
   x = 267,398,016.18/18,455.72
6. Step 6: Final answer
   x = 14,488.63