Finding the Fourth Proportional to 5,131.46, 7,079.18 and 3,142.10

Step by Step Solution

1. Step 1: Write the proportion equation
   5,131.46 : 7,079.18 = 3,142.10 : x
2. Step 2: Convert to fraction form
   5,131.46/7,079.18 = 3,142.10/x
3. Step 3: Cross multiply
   5,131.46x = 7,079.18 × 3,142.10
4. Step 4: Simplify right side
   5,131.46x = 22,243,491.48
5. Step 5: Solve for x
   x = 22,243,491.48/5,131.46
6. Step 6: Final answer
   x = 4,334.73