Finding the Fourth Proportional to 16,217.78, 22,377.15 and 9,847.73

Step by Step Solution

1. Step 1: Write the proportion equation
   16,217.78 : 22,377.15 = 9,847.73 : x
2. Step 2: Convert to fraction form
   16,217.78/22,377.15 = 9,847.73/x
3. Step 3: Cross multiply
   16,217.78x = 22,377.15 × 9,847.73
4. Step 4: Simplify right side
   16,217.78x = 220,364,131.37
5. Step 5: Solve for x
   x = 220,364,131.37/16,217.78
6. Step 6: Final answer
   x = 13,587.81