Finding the Fourth Proportional to 12,302.69, 16,979.23 and 7,771.97

Step by Step Solution

1. Step 1: Write the proportion equation
   12,302.69 : 16,979.23 = 7,771.97 : x
2. Step 2: Convert to fraction form
   12,302.69/16,979.23 = 7,771.97/x
3. Step 3: Cross multiply
   12,302.69x = 16,979.23 × 7,771.97
4. Step 4: Simplify right side
   12,302.69x = 131,961,961.86
5. Step 5: Solve for x
   x = 131,961,961.86/12,302.69
6. Step 6: Final answer
   x = 10,726.27