Finding the Fourth Proportional to 11,123.56, 16,686.79 and 4,108.49

Step by Step Solution

1. Step 1: Write the proportion equation
   11,123.56 : 16,686.79 = 4,108.49 : x
2. Step 2: Convert to fraction form
   11,123.56/16,686.79 = 4,108.49/x
3. Step 3: Cross multiply
   11,123.56x = 16,686.79 × 4,108.49
4. Step 4: Simplify right side
   11,123.56x = 68,557,501.83
5. Step 5: Solve for x
   x = 68,557,501.83/11,123.56
6. Step 6: Final answer
   x = 6,163.27