Finding the Fourth Proportional to 9,617.76, 13,270.32 and 5,424.48

Step by Step Solution

1. Step 1: Write the proportion equation
   9,617.76 : 13,270.32 = 5,424.48 : x
2. Step 2: Convert to fraction form
   9,617.76/13,270.32 = 5,424.48/x
3. Step 3: Cross multiply
   9,617.76x = 13,270.32 × 5,424.48
4. Step 4: Simplify right side
   9,617.76x = 71,984,585.43
5. Step 5: Solve for x
   x = 71,984,585.43/9,617.76
6. Step 6: Final answer
   x = 7,484.55