Finding the Fourth Proportional to 12,281.83, 16,954.72 and 8,309.39

Step by Step Solution

1. Step 1: Write the proportion equation
   12,281.83 : 16,954.72 = 8,309.39 : x
2. Step 2: Convert to fraction form
   12,281.83/16,954.72 = 8,309.39/x
3. Step 3: Cross multiply
   12,281.83x = 16,954.72 × 8,309.39
4. Step 4: Simplify right side
   12,281.83x = 140,883,275.27
5. Step 5: Solve for x
   x = 140,883,275.27/12,281.83
6. Step 6: Final answer
   x = 11,470.87