Finding the Fourth Proportional to 12,279.09, 16,951.59 and 8,267.04

Step by Step Solution

1. Step 1: Write the proportion equation
   12,279.09 : 16,951.59 = 8,267.04 : x
2. Step 2: Convert to fraction form
   12,279.09/16,951.59 = 8,267.04/x
3. Step 3: Cross multiply
   12,279.09x = 16,951.59 × 8,267.04
4. Step 4: Simplify right side
   12,279.09x = 140,139,472.59
5. Step 5: Solve for x
   x = 140,139,472.59/12,279.09
6. Step 6: Final answer
   x = 11,412.85