Finding the Fourth Proportional to 9,714.72, 14,572.88 and 3,141.96

Step by Step Solution

1. Step 1: Write the proportion equation
   9,714.72 : 14,572.88 = 3,141.96 : x
2. Step 2: Convert to fraction form
   9,714.72/14,572.88 = 3,141.96/x
3. Step 3: Cross multiply
   9,714.72x = 14,572.88 × 3,141.96
4. Step 4: Simplify right side
   9,714.72x = 45,787,406.04
5. Step 5: Solve for x
   x = 45,787,406.04/9,714.72
6. Step 6: Final answer
   x = 4,713.20