Finding the Fourth Proportional to 22,333.24, 30,819.78 and 12,261.86

Step by Step Solution

1. Step 1: Write the proportion equation
   22,333.24 : 30,819.78 = 12,261.86 : x
2. Step 2: Convert to fraction form
   22,333.24/30,819.78 = 12,261.86/x
3. Step 3: Cross multiply
   22,333.24x = 30,819.78 × 12,261.86
4. Step 4: Simplify right side
   22,333.24x = 377,907,827.59
5. Step 5: Solve for x
   x = 377,907,827.59/22,333.24
6. Step 6: Final answer
   x = 16,921.32