Finding the Fourth Proportional to 16,103.91, 22,253.90 and 12,118.08

Step by Step Solution

1. Step 1: Write the proportion equation
   16,103.91 : 22,253.90 = 12,118.08 : x
2. Step 2: Convert to fraction form
   16,103.91/22,253.90 = 12,118.08/x
3. Step 3: Cross multiply
   16,103.91x = 22,253.90 × 12,118.08
4. Step 4: Simplify right side
   16,103.91x = 269,674,479.92
5. Step 5: Solve for x
   x = 269,674,479.92/16,103.91
6. Step 6: Final answer
   x = 16,745.90