Finding the Fourth Proportional to 11,997, 16,571.94 and 10,879.16

Step by Step Solution

1. Step 1: Write the proportion equation
   11,997 : 16,571.94 = 10,879.16 : x
2. Step 2: Convert to fraction form
   11,997/16,571.94 = 10,879.16/x
3. Step 3: Cross multiply
   11,997x = 16,571.94 × 10,879.16
4. Step 4: Simplify right side
   11,997x = 180,288,786.77
5. Step 5: Solve for x
   x = 180,288,786.77/11,997
6. Step 6: Final answer
   x = 15,027.82