Finding the Fourth Proportional to 16,185.69, 22,335.75 and 9,111.96

Step by Step Solution

1. Step 1: Write the proportion equation
   16,185.69 : 22,335.75 = 9,111.96 : x
2. Step 2: Convert to fraction form
   16,185.69/22,335.75 = 9,111.96/x
3. Step 3: Cross multiply
   16,185.69x = 22,335.75 × 9,111.96
4. Step 4: Simplify right side
   16,185.69x = 203,522,460.57
5. Step 5: Solve for x
   x = 203,522,460.57/16,185.69
6. Step 6: Final answer
   x = 12,574.22