Finding the Fourth Proportional to 16,081.74, 24,086.97 and 12,356.55

Step by Step Solution

1. Step 1: Write the proportion equation
   16,081.74 : 24,086.97 = 12,356.55 : x
2. Step 2: Convert to fraction form
   16,081.74/24,086.97 = 12,356.55/x
3. Step 3: Cross multiply
   16,081.74x = 24,086.97 × 12,356.55
4. Step 4: Simplify right side
   16,081.74x = 297,631,849.15
5. Step 5: Solve for x
   x = 297,631,849.15/16,081.74
6. Step 6: Final answer
   x = 18,507.44