Finding the Fourth Proportional to 7,711.61, 10,641.98 and 4,174.88

Step by Step Solution

1. Step 1: Write the proportion equation
   7,711.61 : 10,641.98 = 4,174.88 : x
2. Step 2: Convert to fraction form
   7,711.61/10,641.98 = 4,174.88/x
3. Step 3: Cross multiply
   7,711.61x = 10,641.98 × 4,174.88
4. Step 4: Simplify right side
   7,711.61x = 44,428,946.69
5. Step 5: Solve for x
   x = 44,428,946.69/7,711.61
6. Step 6: Final answer
   x = 5,761.31