Finding the Fourth Proportional to 16,142.16, 22,274.22 and 8,972.04

Step by Step Solution

1. Step 1: Write the proportion equation
   16,142.16 : 22,274.22 = 8,972.04 : x
2. Step 2: Convert to fraction form
   16,142.16/22,274.22 = 8,972.04/x
3. Step 3: Cross multiply
   16,142.16x = 22,274.22 × 8,972.04
4. Step 4: Simplify right side
   16,142.16x = 199,845,192.81
5. Step 5: Solve for x
   x = 199,845,192.81/16,142.16
6. Step 6: Final answer
   x = 12,380.33