Finding the Fourth Proportional to 21,708.50, 32,566.98 and 9,228.38

Step by Step Solution

1. Step 1: Write the proportion equation
   21,708.50 : 32,566.98 = 9,228.38 : x
2. Step 2: Convert to fraction form
   21,708.50/32,566.98 = 9,228.38/x
3. Step 3: Cross multiply
   21,708.50x = 32,566.98 × 9,228.38
4. Step 4: Simplify right side
   21,708.50x = 300,540,466.89
5. Step 5: Solve for x
   x = 300,540,466.89/21,708.50
6. Step 6: Final answer
   x = 13,844.37