Finding the Fourth Proportional to 11,120.56, 16,687.40 and 4,105.52

Step by Step Solution

1. Step 1: Write the proportion equation
   11,120.56 : 16,687.40 = 4,105.52 : x
2. Step 2: Convert to fraction form
   11,120.56/16,687.40 = 4,105.52/x
3. Step 3: Cross multiply
   11,120.56x = 16,687.40 × 4,105.52
4. Step 4: Simplify right side
   11,120.56x = 68,510,454.45
5. Step 5: Solve for x
   x = 68,510,454.45/11,120.56
6. Step 6: Final answer
   x = 6,160.70