Finding the Fourth Proportional to 12,223.72, 16,868.82 and 6,634.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,223.72 : 16,868.82 = 6,634.72 : x
2. Step 2: Convert to fraction form
   12,223.72/16,868.82 = 6,634.72/x
3. Step 3: Cross multiply
   12,223.72x = 16,868.82 × 6,634.72
4. Step 4: Simplify right side
   12,223.72x = 111,919,897.43
5. Step 5: Solve for x
   x = 111,919,897.43/12,223.72
6. Step 6: Final answer
   x = 9,155.96