Finding the Fourth Proportional to 144,352.72, 199,203.24 and 80,698

Step by Step Solution

1. Step 1: Write the proportion equation
   144,352.72 : 199,203.24 = 80,698 : x
2. Step 2: Convert to fraction form
   144,352.72/199,203.24 = 80,698/x
3. Step 3: Cross multiply
   144,352.72x = 199,203.24 × 80,698
4. Step 4: Simplify right side
   144,352.72x = 16,075,303,061.52
5. Step 5: Solve for x
   x = 16,075,303,061.52/144,352.72
6. Step 6: Final answer
   x = 111,361.28