Finding the Fourth Proportional to 40,383.72, 55,729.55 and 22,478.34

Step by Step Solution

1. Step 1: Write the proportion equation
   40,383.72 : 55,729.55 = 22,478.34 : x
2. Step 2: Convert to fraction form
   40,383.72/55,729.55 = 22,478.34/x
3. Step 3: Cross multiply
   40,383.72x = 55,729.55 × 22,478.34
4. Step 4: Simplify right side
   40,383.72x = 1,252,707,660.56
5. Step 5: Solve for x
   x = 1,252,707,660.56/40,383.72
6. Step 6: Final answer
   x = 31,020.12