Finding the Fourth Proportional to 16,118.41, 22,243.05 and 8,947.90

Step by Step Solution

1. Step 1: Write the proportion equation
   16,118.41 : 22,243.05 = 8,947.90 : x
2. Step 2: Convert to fraction form
   16,118.41/22,243.05 = 8,947.90/x
3. Step 3: Cross multiply
   16,118.41x = 22,243.05 × 8,947.90
4. Step 4: Simplify right side
   16,118.41x = 199,028,587.10
5. Step 5: Solve for x
   x = 199,028,587.10/16,118.41
6. Step 6: Final answer
   x = 12,347.90