Finding the Fourth Proportional to 16,091.90, 22,205.61 and 9,016.96

Step by Step Solution

1. Step 1: Write the proportion equation
   16,091.90 : 22,205.61 = 9,016.96 : x
2. Step 2: Convert to fraction form
   16,091.90/22,205.61 = 9,016.96/x
3. Step 3: Cross multiply
   16,091.90x = 22,205.61 × 9,016.96
4. Step 4: Simplify right side
   16,091.90x = 200,227,097.15
5. Step 5: Solve for x
   x = 200,227,097.15/16,091.90
6. Step 6: Final answer
   x = 12,442.73