Finding the Fourth Proportional to 21,196.72, 31,791.12 and 8,044.72

Step by Step Solution

1. Step 1: Write the proportion equation
   21,196.72 : 31,791.12 = 8,044.72 : x
2. Step 2: Convert to fraction form
   21,196.72/31,791.12 = 8,044.72/x
3. Step 3: Cross multiply
   21,196.72x = 31,791.12 × 8,044.72
4. Step 4: Simplify right side
   21,196.72x = 255,750,658.89
5. Step 5: Solve for x
   x = 255,750,658.89/21,196.72
6. Step 6: Final answer
   x = 12,065.58