Finding the Fourth Proportional to 9,711.09, 13,401.25 and 5,519.34

Step by Step Solution

1. Step 1: Write the proportion equation
   9,711.09 : 13,401.25 = 5,519.34 : x
2. Step 2: Convert to fraction form
   9,711.09/13,401.25 = 5,519.34/x
3. Step 3: Cross multiply
   9,711.09x = 13,401.25 × 5,519.34
4. Step 4: Simplify right side
   9,711.09x = 73,966,055.18
5. Step 5: Solve for x
   x = 73,966,055.18/9,711.09
6. Step 6: Final answer
   x = 7,616.66