Finding the Fourth Proportional to 22,241.28, 30,691.82 and 12,167.76

Step by Step Solution

1. Step 1: Write the proportion equation
   22,241.28 : 30,691.82 = 12,167.76 : x
2. Step 2: Convert to fraction form
   22,241.28/30,691.82 = 12,167.76/x
3. Step 3: Cross multiply
   22,241.28x = 30,691.82 × 12,167.76
4. Step 4: Simplify right side
   22,241.28x = 373,450,699.72
5. Step 5: Solve for x
   x = 373,450,699.72/22,241.28
6. Step 6: Final answer
   x = 16,790.88