Finding the Fourth Proportional to 16,189.89, 22,340.25 and 9,116.16

Step by Step Solution

1. Step 1: Write the proportion equation
   16,189.89 : 22,340.25 = 9,116.16 : x
2. Step 2: Convert to fraction form
   16,189.89/22,340.25 = 9,116.16/x
3. Step 3: Cross multiply
   16,189.89x = 22,340.25 × 9,116.16
4. Step 4: Simplify right side
   16,189.89x = 203,657,293.44
5. Step 5: Solve for x
   x = 203,657,293.44/16,189.89
6. Step 6: Final answer
   x = 12,579.29