Finding the Fourth Proportional to 22,436.34, 33,654.78 and 8,215.05

Step by Step Solution

1. Step 1: Write the proportion equation
   22,436.34 : 33,654.78 = 8,215.05 : x
2. Step 2: Convert to fraction form
   22,436.34/33,654.78 = 8,215.05/x
3. Step 3: Cross multiply
   22,436.34x = 33,654.78 × 8,215.05
4. Step 4: Simplify right side
   22,436.34x = 276,475,700.44
5. Step 5: Solve for x
   x = 276,475,700.44/22,436.34
6. Step 6: Final answer
   x = 12,322.67