Finding the Fourth Proportional to 16,019.78, 22,105.71 and 8,946.05

Step by Step Solution

1. Step 1: Write the proportion equation
   16,019.78 : 22,105.71 = 8,946.05 : x
2. Step 2: Convert to fraction form
   16,019.78/22,105.71 = 8,946.05/x
3. Step 3: Cross multiply
   16,019.78x = 22,105.71 × 8,946.05
4. Step 4: Simplify right side
   16,019.78x = 197,758,676.42
5. Step 5: Solve for x
   x = 197,758,676.42/16,019.78
6. Step 6: Final answer
   x = 12,344.66