Finding the Fourth Proportional to 21,196.68, 31,793.18 and 8,049.15

Step by Step Solution

1. Step 1: Write the proportion equation
   21,196.68 : 31,793.18 = 8,049.15 : x
2. Step 2: Convert to fraction form
   21,196.68/31,793.18 = 8,049.15/x
3. Step 3: Cross multiply
   21,196.68x = 31,793.18 × 8,049.15
4. Step 4: Simplify right side
   21,196.68x = 255,908,034.55
5. Step 5: Solve for x
   x = 255,908,034.55/21,196.68
6. Step 6: Final answer
   x = 12,073.02