Finding the Fourth Proportional to 9,498.72, 13,107.75 and 5,519.19

Step by Step Solution

1. Step 1: Write the proportion equation
   9,498.72 : 13,107.75 = 5,519.19 : x
2. Step 2: Convert to fraction form
   9,498.72/13,107.75 = 5,519.19/x
3. Step 3: Cross multiply
   9,498.72x = 13,107.75 × 5,519.19
4. Step 4: Simplify right side
   9,498.72x = 72,344,162.72
5. Step 5: Solve for x
   x = 72,344,162.72/9,498.72
6. Step 6: Final answer
   x = 7,616.20