Finding the Fourth Proportional to 20,676.69, 31,025.28 and 8,196.44

Step by Step Solution

1. Step 1: Write the proportion equation
   20,676.69 : 31,025.28 = 8,196.44 : x
2. Step 2: Convert to fraction form
   20,676.69/31,025.28 = 8,196.44/x
3. Step 3: Cross multiply
   20,676.69x = 31,025.28 × 8,196.44
4. Step 4: Simplify right side
   20,676.69x = 254,296,690.88
5. Step 5: Solve for x
   x = 254,296,690.88/20,676.69
6. Step 6: Final answer
   x = 12,298.71