Finding the Fourth Proportional to 13,498.39, 18,629.83 and 8,192.18

Step by Step Solution

1. Step 1: Write the proportion equation
   13,498.39 : 18,629.83 = 8,192.18 : x
2. Step 2: Convert to fraction form
   13,498.39/18,629.83 = 8,192.18/x
3. Step 3: Cross multiply
   13,498.39x = 18,629.83 × 8,192.18
4. Step 4: Simplify right side
   13,498.39x = 152,618,920.73
5. Step 5: Solve for x
   x = 152,618,920.73/13,498.39
6. Step 6: Final answer
   x = 11,306.45