Finding the Fourth Proportional to 8,401.28, 12,593.13 and 3,134.00

Step by Step Solution

1. Step 1: Write the proportion equation
   8,401.28 : 12,593.13 = 3,134.00 : x
2. Step 2: Convert to fraction form
   8,401.28/12,593.13 = 3,134.00/x
3. Step 3: Cross multiply
   8,401.28x = 12,593.13 × 3,134.00
4. Step 4: Simplify right side
   8,401.28x = 39,466,806.45
5. Step 5: Solve for x
   x = 39,466,806.45/8,401.28
6. Step 6: Final answer
   x = 4,697.72