Finding the Fourth Proportional to 9,983.28, 13,677.07 and 9,609.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,983.28 : 13,677.07 = 9,609.42 : x
2. Step 2: Convert to fraction form
   9,983.28/13,677.07 = 9,609.42/x
3. Step 3: Cross multiply
   9,983.28x = 13,677.07 × 9,609.42
4. Step 4: Simplify right side
   9,983.28x = 131,428,710.00
5. Step 5: Solve for x
   x = 131,428,710.00/9,983.28
6. Step 6: Final answer
   x = 13,164.88