Finding the Fourth Proportional to 10,920.38, 16,379.17 and 3,524.06

Step by Step Solution

1. Step 1: Write the proportion equation
   10,920.38 : 16,379.17 = 3,524.06 : x
2. Step 2: Convert to fraction form
   10,920.38/16,379.17 = 3,524.06/x
3. Step 3: Cross multiply
   10,920.38x = 16,379.17 × 3,524.06
4. Step 4: Simplify right side
   10,920.38x = 57,721,209.97
5. Step 5: Solve for x
   x = 57,721,209.97/10,920.38
6. Step 6: Final answer
   x = 5,285.64