Finding the Fourth Proportional to 7,760.71, 10,709.81 and 4,223.94

Step by Step Solution

1. Step 1: Write the proportion equation
   7,760.71 : 10,709.81 = 4,223.94 : x
2. Step 2: Convert to fraction form
   7,760.71/10,709.81 = 4,223.94/x
3. Step 3: Cross multiply
   7,760.71x = 10,709.81 × 4,223.94
4. Step 4: Simplify right side
   7,760.71x = 45,237,594.85
5. Step 5: Solve for x
   x = 45,237,594.85/7,760.71
6. Step 6: Final answer
   x = 5,829.05