Finding the Fourth Proportional to 16,026.78, 22,116.58 and 8,953.18

Step by Step Solution

1. Step 1: Write the proportion equation
   16,026.78 : 22,116.58 = 8,953.18 : x
2. Step 2: Convert to fraction form
   16,026.78/22,116.58 = 8,953.18/x
3. Step 3: Cross multiply
   16,026.78x = 22,116.58 × 8,953.18
4. Step 4: Simplify right side
   16,026.78x = 198,013,721.72
5. Step 5: Solve for x
   x = 198,013,721.72/16,026.78
6. Step 6: Final answer
   x = 12,355.18