Finding the Fourth Proportional to 144,401.72, 199,278.78 and 80,750.84

Step by Step Solution

1. Step 1: Write the proportion equation
   144,401.72 : 199,278.78 = 80,750.84 : x
2. Step 2: Convert to fraction form
   144,401.72/199,278.78 = 80,750.84/x
3. Step 3: Cross multiply
   144,401.72x = 199,278.78 × 80,750.84
4. Step 4: Simplify right side
   144,401.72x = 16,091,928,879.18
5. Step 5: Solve for x
   x = 16,091,928,879.18/144,401.72
6. Step 6: Final answer
   x = 111,438.62