Finding the Fourth Proportional to 12,167.89, 16,787.76 and 6,789.46

Step by Step Solution

1. Step 1: Write the proportion equation
   12,167.89 : 16,787.76 = 6,789.46 : x
2. Step 2: Convert to fraction form
   12,167.89/16,787.76 = 6,789.46/x
3. Step 3: Cross multiply
   12,167.89x = 16,787.76 × 6,789.46
4. Step 4: Simplify right side
   12,167.89x = 113,979,757.58
5. Step 5: Solve for x
   x = 113,979,757.58/12,167.89
6. Step 6: Final answer
   x = 9,367.26