Finding the Fourth Proportional to 105,904.52, 158,821.56 and 42,708.32

Step by Step Solution

1. Step 1: Write the proportion equation
   105,904.52 : 158,821.56 = 42,708.32 : x
2. Step 2: Convert to fraction form
   105,904.52/158,821.56 = 42,708.32/x
3. Step 3: Cross multiply
   105,904.52x = 158,821.56 × 42,708.32
4. Step 4: Simplify right side
   105,904.52x = 6,783,002,007.38
5. Step 5: Solve for x
   x = 6,783,002,007.38/105,904.52
6. Step 6: Final answer
   x = 64,048.28