Finding the Fourth Proportional to 16,182.70, 24,241.71 and 12,856.57

Step by Step Solution

1. Step 1: Write the proportion equation
   16,182.70 : 24,241.71 = 12,856.57 : x
2. Step 2: Convert to fraction form
   16,182.70/24,241.71 = 12,856.57/x
3. Step 3: Cross multiply
   16,182.70x = 24,241.71 × 12,856.57
4. Step 4: Simplify right side
   16,182.70x = 311,665,180.93
5. Step 5: Solve for x
   x = 311,665,180.93/16,182.70
6. Step 6: Final answer
   x = 19,259.16