Finding the Fourth Proportional to 18,456.22, 25,470.03 and 10,499.32

Step by Step Solution

1. Step 1: Write the proportion equation
   18,456.22 : 25,470.03 = 10,499.32 : x
2. Step 2: Convert to fraction form
   18,456.22/25,470.03 = 10,499.32/x
3. Step 3: Cross multiply
   18,456.22x = 25,470.03 × 10,499.32
4. Step 4: Simplify right side
   18,456.22x = 267,417,995.38
5. Step 5: Solve for x
   x = 267,417,995.38/18,456.22
6. Step 6: Final answer
   x = 14,489.32