Finding the Fourth Proportional to 105,936.72, 158,757.44 and 79,610.72

Step by Step Solution

1. Step 1: Write the proportion equation
   105,936.72 : 158,757.44 = 79,610.72 : x
2. Step 2: Convert to fraction form
   105,936.72/158,757.44 = 79,610.72/x
3. Step 3: Cross multiply
   105,936.72x = 158,757.44 × 79,610.72
4. Step 4: Simplify right side
   105,936.72x = 12,638,794,103.76
5. Step 5: Solve for x
   x = 12,638,794,103.76/105,936.72
6. Step 6: Final answer
   x = 119,305.13