Finding the Fourth Proportional to 105,722.04, 158,661.91 and 42,542.73

Step by Step Solution

1. Step 1: Write the proportion equation
   105,722.04 : 158,661.91 = 42,542.73 : x
2. Step 2: Convert to fraction form
   105,722.04/158,661.91 = 42,542.73/x
3. Step 3: Cross multiply
   105,722.04x = 158,661.91 × 42,542.73
4. Step 4: Simplify right side
   105,722.04x = 6,749,910,851.59
5. Step 5: Solve for x
   x = 6,749,910,851.59/105,722.04
6. Step 6: Final answer
   x = 63,845.82