Finding the Fourth Proportional to 9,498.69, 13,012.98 and 9,143.73

Step by Step Solution

1. Step 1: Write the proportion equation
   9,498.69 : 13,012.98 = 9,143.73 : x
2. Step 2: Convert to fraction form
   9,498.69/13,012.98 = 9,143.73/x
3. Step 3: Cross multiply
   9,498.69x = 13,012.98 × 9,143.73
4. Step 4: Simplify right side
   9,498.69x = 118,987,175.62
5. Step 5: Solve for x
   x = 118,987,175.62/9,498.69
6. Step 6: Final answer
   x = 12,526.69