Finding the Fourth Proportional to 16,216.95, 22,380.75 and 9,144.84

Step by Step Solution

1. Step 1: Write the proportion equation
   16,216.95 : 22,380.75 = 9,144.84 : x
2. Step 2: Convert to fraction form
   16,216.95/22,380.75 = 9,144.84/x
3. Step 3: Cross multiply
   16,216.95x = 22,380.75 × 9,144.84
4. Step 4: Simplify right side
   16,216.95x = 204,668,377.83
5. Step 5: Solve for x
   x = 204,668,377.83/16,216.95
6. Step 6: Final answer
   x = 12,620.65