Finding the Fourth Proportional to 16,043.78, 24,119.46 and 12,945.50

Step by Step Solution

1. Step 1: Write the proportion equation
   16,043.78 : 24,119.46 = 12,945.50 : x
2. Step 2: Convert to fraction form
   16,043.78/24,119.46 = 12,945.50/x
3. Step 3: Cross multiply
   16,043.78x = 24,119.46 × 12,945.50
4. Step 4: Simplify right side
   16,043.78x = 312,238,469.43
5. Step 5: Solve for x
   x = 312,238,469.43/16,043.78
6. Step 6: Final answer
   x = 19,461.65