Finding the Fourth Proportional to 3,143.43, 4,679.21 and 3,096.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,143.43 : 4,679.21 = 3,096.72 : x
2. Step 2: Convert to fraction form
   3,143.43/4,679.21 = 3,096.72/x
3. Step 3: Cross multiply
   3,143.43x = 4,679.21 × 3,096.72
4. Step 4: Simplify right side
   3,143.43x = 14,490,187.71
5. Step 5: Solve for x
   x = 14,490,187.71/3,143.43
6. Step 6: Final answer
   x = 4,609.67