Finding the Fourth Proportional to 30,783.92, 42,478.56 and 17,354.84

Step by Step Solution

1. Step 1: Write the proportion equation
   30,783.92 : 42,478.56 = 17,354.84 : x
2. Step 2: Convert to fraction form
   30,783.92/42,478.56 = 17,354.84/x
3. Step 3: Cross multiply
   30,783.92x = 42,478.56 × 17,354.84
4. Step 4: Simplify right side
   30,783.92x = 737,208,612.23
5. Step 5: Solve for x
   x = 737,208,612.23/30,783.92
6. Step 6: Final answer
   x = 23,947.85