Finding the Fourth Proportional to 12,680.16, 17,497.76 and 7,014.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,680.16 : 17,497.76 = 7,014.72 : x
2. Step 2: Convert to fraction form
   12,680.16/17,497.76 = 7,014.72/x
3. Step 3: Cross multiply
   12,680.16x = 17,497.76 × 7,014.72
4. Step 4: Simplify right side
   12,680.16x = 122,741,887.03
5. Step 5: Solve for x
   x = 122,741,887.03/12,680.16
6. Step 6: Final answer
   x = 9,679.84