Finding the Fourth Proportional to 10,992.72, 15,169.98 and 5,957

Step by Step Solution

1. Step 1: Write the proportion equation
   10,992.72 : 15,169.98 = 5,957 : x
2. Step 2: Convert to fraction form
   10,992.72/15,169.98 = 5,957/x
3. Step 3: Cross multiply
   10,992.72x = 15,169.98 × 5,957
4. Step 4: Simplify right side
   10,992.72x = 90,367,570.86
5. Step 5: Solve for x
   x = 90,367,570.86/10,992.72
6. Step 6: Final answer
   x = 8,220.67