Finding the Fourth Proportional to 16,676.67, 23,022.17 and 12,891.27

Step by Step Solution

1. Step 1: Write the proportion equation
   16,676.67 : 23,022.17 = 12,891.27 : x
2. Step 2: Convert to fraction form
   16,676.67/23,022.17 = 12,891.27/x
3. Step 3: Cross multiply
   16,676.67x = 23,022.17 × 12,891.27
4. Step 4: Simplify right side
   16,676.67x = 296,784,945.00
5. Step 5: Solve for x
   x = 296,784,945.00/16,676.67
6. Step 6: Final answer
   x = 17,796.42