Finding the Fourth Proportional to 9,711.75, 13,401.69 and 5,731.41

Step by Step Solution

1. Step 1: Write the proportion equation
   9,711.75 : 13,401.69 = 5,731.41 : x
2. Step 2: Convert to fraction form
   9,711.75/13,401.69 = 5,731.41/x
3. Step 3: Cross multiply
   9,711.75x = 13,401.69 × 5,731.41
4. Step 4: Simplify right side
   9,711.75x = 76,810,580.08
5. Step 5: Solve for x
   x = 76,810,580.08/9,711.75
6. Step 6: Final answer
   x = 7,909.04