Finding the Fourth Proportional to 16,676.63, 23,022.12 and 12,891.25

Step by Step Solution

1. Step 1: Write the proportion equation
   16,676.63 : 23,022.12 = 12,891.25 : x
2. Step 2: Convert to fraction form
   16,676.63/23,022.12 = 12,891.25/x
3. Step 3: Cross multiply
   16,676.63x = 23,022.12 × 12,891.25
4. Step 4: Simplify right side
   16,676.63x = 296,783,981.57
5. Step 5: Solve for x
   x = 296,783,981.57/16,676.63
6. Step 6: Final answer
   x = 17,796.40