Finding the Fourth Proportional to 3,168.10, 4,426.70 and 3,168.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,168.10 : 4,426.70 = 3,168.10 : x
2. Step 2: Convert to fraction form
   3,168.10/4,426.70 = 3,168.10/x
3. Step 3: Cross multiply
   3,168.10x = 4,426.70 × 3,168.10
4. Step 4: Simplify right side
   3,168.10x = 14,024,228.27
5. Step 5: Solve for x
   x = 14,024,228.27/3,168.10
6. Step 6: Final answer
   x = 4,426.70