Finding the Fourth Proportional to 7,711.10, 10,641.31 and 4,174.31

Step by Step Solution

1. Step 1: Write the proportion equation
   7,711.10 : 10,641.31 = 4,174.31 : x
2. Step 2: Convert to fraction form
   7,711.10/10,641.31 = 4,174.31/x
3. Step 3: Cross multiply
   7,711.10x = 10,641.31 × 4,174.31
4. Step 4: Simplify right side
   7,711.10x = 44,420,123.67
5. Step 5: Solve for x
   x = 44,420,123.67/7,711.10
6. Step 6: Final answer
   x = 5,760.55