Finding the Fourth Proportional to 12,679.35, 17,496.62 and 7,373.79

Step by Step Solution

1. Step 1: Write the proportion equation
   12,679.35 : 17,496.62 = 7,373.79 : x
2. Step 2: Convert to fraction form
   12,679.35/17,496.62 = 7,373.79/x
3. Step 3: Cross multiply
   12,679.35x = 17,496.62 × 7,373.79
4. Step 4: Simplify right side
   12,679.35x = 129,016,364.72
5. Step 5: Solve for x
   x = 129,016,364.72/12,679.35
6. Step 6: Final answer
   x = 10,175.31