Finding the Fourth Proportional to 9,714.43, 14,566.62 and 3,139.76

Step by Step Solution

1. Step 1: Write the proportion equation
   9,714.43 : 14,566.62 = 3,139.76 : x
2. Step 2: Convert to fraction form
   9,714.43/14,566.62 = 3,139.76/x
3. Step 3: Cross multiply
   9,714.43x = 14,566.62 × 3,139.76
4. Step 4: Simplify right side
   9,714.43x = 45,735,617.98
5. Step 5: Solve for x
   x = 45,735,617.98/9,714.43
6. Step 6: Final answer
   x = 4,708.01