Finding the Fourth Proportional to 14,826.16, 20,459.92 and 8,111.69

Step by Step Solution

1. Step 1: Write the proportion equation
   14,826.16 : 20,459.92 = 8,111.69 : x
2. Step 2: Convert to fraction form
   14,826.16/20,459.92 = 8,111.69/x
3. Step 3: Cross multiply
   14,826.16x = 20,459.92 × 8,111.69
4. Step 4: Simplify right side
   14,826.16x = 165,964,566.77
5. Step 5: Solve for x
   x = 165,964,566.77/14,826.16
6. Step 6: Final answer
   x = 11,194.03