Finding the Fourth Proportional to 12,796.68, 17,668.43 and 8,976.44

Step by Step Solution

1. Step 1: Write the proportion equation
   12,796.68 : 17,668.43 = 8,976.44 : x
2. Step 2: Convert to fraction form
   12,796.68/17,668.43 = 8,976.44/x
3. Step 3: Cross multiply
   12,796.68x = 17,668.43 × 8,976.44
4. Step 4: Simplify right side
   12,796.68x = 158,599,559.80
5. Step 5: Solve for x
   x = 158,599,559.80/12,796.68
6. Step 6: Final answer
   x = 12,393.80