Finding the Fourth Proportional to 144,311.72, 199,149.52 and 80,649.48

Step by Step Solution

1. Step 1: Write the proportion equation
   144,311.72 : 199,149.52 = 80,649.48 : x
2. Step 2: Convert to fraction form
   144,311.72/199,149.52 = 80,649.48/x
3. Step 3: Cross multiply
   144,311.72x = 199,149.52 × 80,649.48
4. Step 4: Simplify right side
   144,311.72x = 16,061,305,230.25
5. Step 5: Solve for x
   x = 16,061,305,230.25/144,311.72
6. Step 6: Final answer
   x = 111,295.92