Finding the Fourth Proportional to 4,105.59, 5,665.17 and 2,312.85

Step by Step Solution

1. Step 1: Write the proportion equation
   4,105.59 : 5,665.17 = 2,312.85 : x
2. Step 2: Convert to fraction form
   4,105.59/5,665.17 = 2,312.85/x
3. Step 3: Cross multiply
   4,105.59x = 5,665.17 × 2,312.85
4. Step 4: Simplify right side
   4,105.59x = 13,102,688.43
5. Step 5: Solve for x
   x = 13,102,688.43/4,105.59
6. Step 6: Final answer
   x = 3,191.43