Finding the Fourth Proportional to 12,714.38, 19,073.61 and 3,947.24

Step by Step Solution

1. Step 1: Write the proportion equation
   12,714.38 : 19,073.61 = 3,947.24 : x
2. Step 2: Convert to fraction form
   12,714.38/19,073.61 = 3,947.24/x
3. Step 3: Cross multiply
   12,714.38x = 19,073.61 × 3,947.24
4. Step 4: Simplify right side
   12,714.38x = 75,288,116.34
5. Step 5: Solve for x
   x = 75,288,116.34/12,714.38
6. Step 6: Final answer
   x = 5,921.49