Finding the Fourth Proportional to 4,271.96, 6,401.46 and 3,171.18

Step by Step Solution

1. Step 1: Write the proportion equation
   4,271.96 : 6,401.46 = 3,171.18 : x
2. Step 2: Convert to fraction form
   4,271.96/6,401.46 = 3,171.18/x
3. Step 3: Cross multiply
   4,271.96x = 6,401.46 × 3,171.18
4. Step 4: Simplify right side
   4,271.96x = 20,300,181.92
5. Step 5: Solve for x
   x = 20,300,181.92/4,271.96
6. Step 6: Final answer
   x = 4,751.96