Finding the Fourth Proportional to 144,018.52, 198,756.78 and 80,365.88

Step by Step Solution

1. Step 1: Write the proportion equation
   144,018.52 : 198,756.78 = 80,365.88 : x
2. Step 2: Convert to fraction form
   144,018.52/198,756.78 = 80,365.88/x
3. Step 3: Cross multiply
   144,018.52x = 198,756.78 × 80,365.88
4. Step 4: Simplify right side
   144,018.52x = 15,973,263,530.67
5. Step 5: Solve for x
   x = 15,973,263,530.67/144,018.52
6. Step 6: Final answer
   x = 110,911.18