Finding the Fourth Proportional to 11,826.21, 16,321.33 and 8,836.85

Step by Step Solution

1. Step 1: Write the proportion equation
   11,826.21 : 16,321.33 = 8,836.85 : x
2. Step 2: Convert to fraction form
   11,826.21/16,321.33 = 8,836.85/x
3. Step 3: Cross multiply
   11,826.21x = 16,321.33 × 8,836.85
4. Step 4: Simplify right side
   11,826.21x = 144,229,145.01
5. Step 5: Solve for x
   x = 144,229,145.01/11,826.21
6. Step 6: Final answer
   x = 12,195.72