Finding the Fourth Proportional to 16,676.91, 23,022.50 and 12,891.52

Step by Step Solution

1. Step 1: Write the proportion equation
   16,676.91 : 23,022.50 = 12,891.52 : x
2. Step 2: Convert to fraction form
   16,676.91/23,022.50 = 12,891.52/x
3. Step 3: Cross multiply
   16,676.91x = 23,022.50 × 12,891.52
4. Step 4: Simplify right side
   16,676.91x = 296,795,019.20
5. Step 5: Solve for x
   x = 296,795,019.20/16,676.91
6. Step 6: Final answer
   x = 17,796.76