Finding the Fourth Proportional to 30,783.72, 42,478.98 and 17,358.27

Step by Step Solution

1. Step 1: Write the proportion equation
   30,783.72 : 42,478.98 = 17,358.27 : x
2. Step 2: Convert to fraction form
   30,783.72/42,478.98 = 17,358.27/x
3. Step 3: Cross multiply
   30,783.72x = 42,478.98 × 17,358.27
4. Step 4: Simplify right side
   30,783.72x = 737,361,604.16
5. Step 5: Solve for x
   x = 737,361,604.16/30,783.72
6. Step 6: Final answer
   x = 23,952.97