Finding the Fourth Proportional to 12,679.26, 17,493.10 and 7,369.71

Step by Step Solution

1. Step 1: Write the proportion equation
   12,679.26 : 17,493.10 = 7,369.71 : x
2. Step 2: Convert to fraction form
   12,679.26/17,493.10 = 7,369.71/x
3. Step 3: Cross multiply
   12,679.26x = 17,493.10 × 7,369.71
4. Step 4: Simplify right side
   12,679.26x = 128,919,074.00
5. Step 5: Solve for x
   x = 128,919,074.00/12,679.26
6. Step 6: Final answer
   x = 10,167.71