Finding the Fourth Proportional to 16,116.99, 22,242.78 and 8,947.57

Step by Step Solution

1. Step 1: Write the proportion equation
   16,116.99 : 22,242.78 = 8,947.57 : x
2. Step 2: Convert to fraction form
   16,116.99/22,242.78 = 8,947.57/x
3. Step 3: Cross multiply
   16,116.99x = 22,242.78 × 8,947.57
4. Step 4: Simplify right side
   16,116.99x = 199,018,831.04
5. Step 5: Solve for x
   x = 199,018,831.04/16,116.99
6. Step 6: Final answer
   x = 12,348.39