Finding the Fourth Proportional to 8,488.71, 11,714.31 and 4,711.86

Step by Step Solution

1. Step 1: Write the proportion equation
   8,488.71 : 11,714.31 = 4,711.86 : x
2. Step 2: Convert to fraction form
   8,488.71/11,714.31 = 4,711.86/x
3. Step 3: Cross multiply
   8,488.71x = 11,714.31 × 4,711.86
4. Step 4: Simplify right side
   8,488.71x = 55,196,188.72
5. Step 5: Solve for x
   x = 55,196,188.72/8,488.71
6. Step 6: Final answer
   x = 6,502.31