Finding the Fourth Proportional to 9,221.97, 13,823.61 and 3,960.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,221.97 : 13,823.61 = 3,960.42 : x
2. Step 2: Convert to fraction form
   9,221.97/13,823.61 = 3,960.42/x
3. Step 3: Cross multiply
   9,221.97x = 13,823.61 × 3,960.42
4. Step 4: Simplify right side
   9,221.97x = 54,747,301.52
5. Step 5: Solve for x
   x = 54,747,301.52/9,221.97
6. Step 6: Final answer
   x = 5,936.62