Finding the Fourth Proportional to 16,021.36, 22,109.83 and 8,947.80

Step by Step Solution

1. Step 1: Write the proportion equation
   16,021.36 : 22,109.83 = 8,947.80 : x
2. Step 2: Convert to fraction form
   16,021.36/22,109.83 = 8,947.80/x
3. Step 3: Cross multiply
   16,021.36x = 22,109.83 × 8,947.80
4. Step 4: Simplify right side
   16,021.36x = 197,834,314.50
5. Step 5: Solve for x
   x = 197,834,314.50/16,021.36
6. Step 6: Final answer
   x = 12,348.16