Finding the Fourth Proportional to 13,103.90, 18,084.83 and 8,067.11

Step by Step Solution

1. Step 1: Write the proportion equation
   13,103.90 : 18,084.83 = 8,067.11 : x
2. Step 2: Convert to fraction form
   13,103.90/18,084.83 = 8,067.11/x
3. Step 3: Cross multiply
   13,103.90x = 18,084.83 × 8,067.11
4. Step 4: Simplify right side
   13,103.90x = 145,892,272.61
5. Step 5: Solve for x
   x = 145,892,272.61/13,103.90
6. Step 6: Final answer
   x = 11,133.50