Finding the Fourth Proportional to 22,914.72, 34,383.78 and 10,920.42

Step by Step Solution

1. Step 1: Write the proportion equation
   22,914.72 : 34,383.78 = 10,920.42 : x
2. Step 2: Convert to fraction form
   22,914.72/34,383.78 = 10,920.42/x
3. Step 3: Cross multiply
   22,914.72x = 34,383.78 × 10,920.42
4. Step 4: Simplify right side
   22,914.72x = 375,485,318.79
5. Step 5: Solve for x
   x = 375,485,318.79/22,914.72
6. Step 6: Final answer
   x = 16,386.21