Finding the Fourth Proportional to 10,432.54, 15,647.34 and 3,857.62

Step by Step Solution

1. Step 1: Write the proportion equation
   10,432.54 : 15,647.34 = 3,857.62 : x
2. Step 2: Convert to fraction form
   10,432.54/15,647.34 = 3,857.62/x
3. Step 3: Cross multiply
   10,432.54x = 15,647.34 × 3,857.62
4. Step 4: Simplify right side
   10,432.54x = 60,361,491.73
5. Step 5: Solve for x
   x = 60,361,491.73/10,432.54
6. Step 6: Final answer
   x = 5,785.89