Finding the Fourth Proportional to 16,142.64, 22,276.82 and 8,972.33

Step by Step Solution

1. Step 1: Write the proportion equation
   16,142.64 : 22,276.82 = 8,972.33 : x
2. Step 2: Convert to fraction form
   16,142.64/22,276.82 = 8,972.33/x
3. Step 3: Cross multiply
   16,142.64x = 22,276.82 × 8,972.33
4. Step 4: Simplify right side
   16,142.64x = 199,874,942.28
5. Step 5: Solve for x
   x = 199,874,942.28/16,142.64
6. Step 6: Final answer
   x = 12,381.80