Finding the Fourth Proportional to 11,222.82, 16,801.43 and 7,879.55

Step by Step Solution

1. Step 1: Write the proportion equation
   11,222.82 : 16,801.43 = 7,879.55 : x
2. Step 2: Convert to fraction form
   11,222.82/16,801.43 = 7,879.55/x
3. Step 3: Cross multiply
   11,222.82x = 16,801.43 × 7,879.55
4. Step 4: Simplify right side
   11,222.82x = 132,387,584.35
5. Step 5: Solve for x
   x = 132,387,584.35/11,222.82
6. Step 6: Final answer
   x = 11,796.29