Finding the Fourth Proportional to 16,261.57, 22,442.31 and 9,189.34

Step by Step Solution

1. Step 1: Write the proportion equation
   16,261.57 : 22,442.31 = 9,189.34 : x
2. Step 2: Convert to fraction form
   16,261.57/22,442.31 = 9,189.34/x
3. Step 3: Cross multiply
   16,261.57x = 22,442.31 × 9,189.34
4. Step 4: Simplify right side
   16,261.57x = 206,230,016.98
5. Step 5: Solve for x
   x = 206,230,016.98/16,261.57
6. Step 6: Final answer
   x = 12,682.05