Finding the Fourth Proportional to 32,443.78, 48,665.36 and 10,257.15

Step by Step Solution

1. Step 1: Write the proportion equation
   32,443.78 : 48,665.36 = 10,257.15 : x
2. Step 2: Convert to fraction form
   32,443.78/48,665.36 = 10,257.15/x
3. Step 3: Cross multiply
   32,443.78x = 48,665.36 × 10,257.15
4. Step 4: Simplify right side
   32,443.78x = 499,168,105.46
5. Step 5: Solve for x
   x = 499,168,105.46/32,443.78
6. Step 6: Final answer
   x = 15,385.63