Finding the Fourth Proportional to 12,078.27, 16,667.85 and 6,772.98

Step by Step Solution

1. Step 1: Write the proportion equation
   12,078.27 : 16,667.85 = 6,772.98 : x
2. Step 2: Convert to fraction form
   12,078.27/16,667.85 = 6,772.98/x
3. Step 3: Cross multiply
   12,078.27x = 16,667.85 × 6,772.98
4. Step 4: Simplify right side
   12,078.27x = 112,891,014.69
5. Step 5: Solve for x
   x = 112,891,014.69/12,078.27
6. Step 6: Final answer
   x = 9,346.62