Finding the Fourth Proportional to 9,498.70, 13,107.18 and 5,520.16

Step by Step Solution

1. Step 1: Write the proportion equation
   9,498.70 : 13,107.18 = 5,520.16 : x
2. Step 2: Convert to fraction form
   9,498.70/13,107.18 = 5,520.16/x
3. Step 3: Cross multiply
   9,498.70x = 13,107.18 × 5,520.16
4. Step 4: Simplify right side
   9,498.70x = 72,353,730.75
5. Step 5: Solve for x
   x = 72,353,730.75/9,498.70
6. Step 6: Final answer
   x = 7,617.22