Finding the Fourth Proportional to 9,616.48, 13,270.98 and 5,425

Step by Step Solution

1. Step 1: Write the proportion equation
   9,616.48 : 13,270.98 = 5,425 : x
2. Step 2: Convert to fraction form
   9,616.48/13,270.98 = 5,425/x
3. Step 3: Cross multiply
   9,616.48x = 13,270.98 × 5,425
4. Step 4: Simplify right side
   9,616.48x = 71,995,066.50
5. Step 5: Solve for x
   x = 71,995,066.50/9,616.48
6. Step 6: Final answer
   x = 7,486.63