Finding the Fourth Proportional to 16,142.72, 22,274.46 and 9,067.76

Step by Step Solution

1. Step 1: Write the proportion equation
   16,142.72 : 22,274.46 = 9,067.76 : x
2. Step 2: Convert to fraction form
   16,142.72/22,274.46 = 9,067.76/x
3. Step 3: Cross multiply
   16,142.72x = 22,274.46 × 9,067.76
4. Step 4: Simplify right side
   16,142.72x = 201,979,457.41
5. Step 5: Solve for x
   x = 201,979,457.41/16,142.72
6. Step 6: Final answer
   x = 12,512.11