Finding the Fourth Proportional to 9,711.34, 13,401.60 and 5,519.59

Step by Step Solution

1. Step 1: Write the proportion equation
   9,711.34 : 13,401.60 = 5,519.59 : x
2. Step 2: Convert to fraction form
   9,711.34/13,401.60 = 5,519.59/x
3. Step 3: Cross multiply
   9,711.34x = 13,401.60 × 5,519.59
4. Step 4: Simplify right side
   9,711.34x = 73,971,337.34
5. Step 5: Solve for x
   x = 73,971,337.34/9,711.34
6. Step 6: Final answer
   x = 7,617.01