Finding the Fourth Proportional to 12,680.26, 17,494.48 and 7,370.71

Step by Step Solution

1. Step 1: Write the proportion equation
   12,680.26 : 17,494.48 = 7,370.71 : x
2. Step 2: Convert to fraction form
   12,680.26/17,494.48 = 7,370.71/x
3. Step 3: Cross multiply
   12,680.26x = 17,494.48 × 7,370.71
4. Step 4: Simplify right side
   12,680.26x = 128,946,738.68
5. Step 5: Solve for x
   x = 128,946,738.68/12,680.26
6. Step 6: Final answer
   x = 10,169.09