Finding the Fourth Proportional to 105,493.37, 158,238.83 and 42,329.57

Step by Step Solution

1. Step 1: Write the proportion equation
   105,493.37 : 158,238.83 = 42,329.57 : x
2. Step 2: Convert to fraction form
   105,493.37/158,238.83 = 42,329.57/x
3. Step 3: Cross multiply
   105,493.37x = 158,238.83 × 42,329.57
4. Step 4: Simplify right side
   105,493.37x = 6,698,180,945.83
5. Step 5: Solve for x
   x = 6,698,180,945.83/105,493.37
6. Step 6: Final answer
   x = 63,493.86