Finding the Fourth Proportional to 12,680.68, 17,498.16 and 7,375.42

Step by Step Solution

1. Step 1: Write the proportion equation
   12,680.68 : 17,498.16 = 7,375.42 : x
2. Step 2: Convert to fraction form
   12,680.68/17,498.16 = 7,375.42/x
3. Step 3: Cross multiply
   12,680.68x = 17,498.16 × 7,375.42
4. Step 4: Simplify right side
   12,680.68x = 129,056,279.23
5. Step 5: Solve for x
   x = 129,056,279.23/12,680.68
6. Step 6: Final answer
   x = 10,177.39