Finding the Fourth Proportional to 144,396.72, 199,271.88 and 80,745.84

Step by Step Solution

1. Step 1: Write the proportion equation
   144,396.72 : 199,271.88 = 80,745.84 : x
2. Step 2: Convert to fraction form
   144,396.72/199,271.88 = 80,745.84/x
3. Step 3: Cross multiply
   144,396.72x = 199,271.88 × 80,745.84
4. Step 4: Simplify right side
   144,396.72x = 16,090,375,338.98
5. Step 5: Solve for x
   x = 16,090,375,338.98/144,396.72
6. Step 6: Final answer
   x = 111,431.72