Finding the Fourth Proportional to 11,020.56, 16,530.76 and 4,442.09

Step by Step Solution

1. Step 1: Write the proportion equation
   11,020.56 : 16,530.76 = 4,442.09 : x
2. Step 2: Convert to fraction form
   11,020.56/16,530.76 = 4,442.09/x
3. Step 3: Cross multiply
   11,020.56x = 16,530.76 × 4,442.09
4. Step 4: Simplify right side
   11,020.56x = 73,431,123.69
5. Step 5: Solve for x
   x = 73,431,123.69/11,020.56
6. Step 6: Final answer
   x = 6,663.10