Finding the Fourth Proportional to 9,710.88, 13,401.12 and 5,520

Step by Step Solution

1. Step 1: Write the proportion equation
   9,710.88 : 13,401.12 = 5,520 : x
2. Step 2: Convert to fraction form
   9,710.88/13,401.12 = 5,520/x
3. Step 3: Cross multiply
   9,710.88x = 13,401.12 × 5,520
4. Step 4: Simplify right side
   9,710.88x = 73,974,182.40
5. Step 5: Solve for x
   x = 73,974,182.40/9,710.88
6. Step 6: Final answer
   x = 7,617.66