Finding the Fourth Proportional to 12,680.08, 17,496.39 and 7,375.12

Step by Step Solution

1. Step 1: Write the proportion equation
   12,680.08 : 17,496.39 = 7,375.12 : x
2. Step 2: Convert to fraction form
   12,680.08/17,496.39 = 7,375.12/x
3. Step 3: Cross multiply
   12,680.08x = 17,496.39 × 7,375.12
4. Step 4: Simplify right side
   12,680.08x = 129,037,975.82
5. Step 5: Solve for x
   x = 129,037,975.82/12,680.08
6. Step 6: Final answer
   x = 10,176.43