Finding the Fourth Proportional to 143,983.82, 198,697.38 and 80,317.82

Step by Step Solution

1. Step 1: Write the proportion equation
   143,983.82 : 198,697.38 = 80,317.82 : x
2. Step 2: Convert to fraction form
   143,983.82/198,697.38 = 80,317.82/x
3. Step 3: Cross multiply
   143,983.82x = 198,697.38 × 80,317.82
4. Step 4: Simplify right side
   143,983.82x = 15,958,940,401.31
5. Step 5: Solve for x
   x = 15,958,940,401.31/143,983.82
6. Step 6: Final answer
   x = 110,838.43