Finding the Fourth Proportional to 16,020.12, 22,106.70 and 8,945.16

Step by Step Solution

1. Step 1: Write the proportion equation
   16,020.12 : 22,106.70 = 8,945.16 : x
2. Step 2: Convert to fraction form
   16,020.12/22,106.70 = 8,945.16/x
3. Step 3: Cross multiply
   16,020.12x = 22,106.70 × 8,945.16
4. Step 4: Simplify right side
   16,020.12x = 197,747,968.57
5. Step 5: Solve for x
   x = 197,747,968.57/16,020.12
6. Step 6: Final answer
   x = 12,343.73