Finding the Fourth Proportional to 10,478.27, 15,714.04 and 3,456.71

Step by Step Solution

1. Step 1: Write the proportion equation
   10,478.27 : 15,714.04 = 3,456.71 : x
2. Step 2: Convert to fraction form
   10,478.27/15,714.04 = 3,456.71/x
3. Step 3: Cross multiply
   10,478.27x = 15,714.04 × 3,456.71
4. Step 4: Simplify right side
   10,478.27x = 54,318,879.21
5. Step 5: Solve for x
   x = 54,318,879.21/10,478.27
6. Step 6: Final answer
   x = 5,183.95