Finding the Fourth Proportional to 16,243.89, 22,416.57 and 8,791.89

Step by Step Solution

1. Step 1: Write the proportion equation
   16,243.89 : 22,416.57 = 8,791.89 : x
2. Step 2: Convert to fraction form
   16,243.89/22,416.57 = 8,791.89/x
3. Step 3: Cross multiply
   16,243.89x = 22,416.57 × 8,791.89
4. Step 4: Simplify right side
   16,243.89x = 197,084,017.62
5. Step 5: Solve for x
   x = 197,084,017.62/16,243.89
6. Step 6: Final answer
   x = 12,132.81