Finding the Fourth Proportional to 18,456.72, 25,470.12 and 10,073.20

Step by Step Solution

1. Step 1: Write the proportion equation
   18,456.72 : 25,470.12 = 10,073.20 : x
2. Step 2: Convert to fraction form
   18,456.72/25,470.12 = 10,073.20/x
3. Step 3: Cross multiply
   18,456.72x = 25,470.12 × 10,073.20
4. Step 4: Simplify right side
   18,456.72x = 256,565,612.78
5. Step 5: Solve for x
   x = 256,565,612.78/18,456.72
6. Step 6: Final answer
   x = 13,900.93