Finding the Fourth Proportional to 22,431.87, 33,383.02 and 21,684.42

Step by Step Solution

1. Step 1: Write the proportion equation
   22,431.87 : 33,383.02 = 21,684.42 : x
2. Step 2: Convert to fraction form
   22,431.87/33,383.02 = 21,684.42/x
3. Step 3: Cross multiply
   22,431.87x = 33,383.02 × 21,684.42
4. Step 4: Simplify right side
   22,431.87x = 723,891,426.55
5. Step 5: Solve for x
   x = 723,891,426.55/22,431.87
6. Step 6: Final answer
   x = 32,270.67