Finding the Fourth Proportional to 7,761.85, 10,711.42 and 4,225.10

Step by Step Solution

1. Step 1: Write the proportion equation
   7,761.85 : 10,711.42 = 4,225.10 : x
2. Step 2: Convert to fraction form
   7,761.85/10,711.42 = 4,225.10/x
3. Step 3: Cross multiply
   7,761.85x = 10,711.42 × 4,225.10
4. Step 4: Simplify right side
   7,761.85x = 45,256,756.52
5. Step 5: Solve for x
   x = 45,256,756.52/7,761.85
6. Step 6: Final answer
   x = 5,830.67