Finding the Fourth Proportional to 10,920.12, 16,379.82 and 5,992.08

Step by Step Solution

1. Step 1: Write the proportion equation
   10,920.12 : 16,379.82 = 5,992.08 : x
2. Step 2: Convert to fraction form
   10,920.12/16,379.82 = 5,992.08/x
3. Step 3: Cross multiply
   10,920.12x = 16,379.82 × 5,992.08
4. Step 4: Simplify right side
   10,920.12x = 98,149,191.83
5. Step 5: Solve for x
   x = 98,149,191.83/10,920.12
6. Step 6: Final answer
   x = 8,987.92