Finding the Fourth Proportional to 3,401.30, 5,103.15 and 3,281.30

Step by Step Solution

1. Step 1: Write the proportion equation
   3,401.30 : 5,103.15 = 3,281.30 : x
2. Step 2: Convert to fraction form
   3,401.30/5,103.15 = 3,281.30/x
3. Step 3: Cross multiply
   3,401.30x = 5,103.15 × 3,281.30
4. Step 4: Simplify right side
   3,401.30x = 16,744,966.10
5. Step 5: Solve for x
   x = 16,744,966.10/3,401.30
6. Step 6: Final answer
   x = 4,923.11