Finding the Fourth Proportional to 16,256.54, 22,433.72 and 9,086.55

Step by Step Solution

1. Step 1: Write the proportion equation
   16,256.54 : 22,433.72 = 9,086.55 : x
2. Step 2: Convert to fraction form
   16,256.54/22,433.72 = 9,086.55/x
3. Step 3: Cross multiply
   16,256.54x = 22,433.72 × 9,086.55
4. Step 4: Simplify right side
   16,256.54x = 203,845,073.03
5. Step 5: Solve for x
   x = 203,845,073.03/16,256.54
6. Step 6: Final answer
   x = 12,539.27