Finding the Fourth Proportional to 144,266.65, 199,083.89 and 80,604.45

Step by Step Solution

1. Step 1: Write the proportion equation
   144,266.65 : 199,083.89 = 80,604.45 : x
2. Step 2: Convert to fraction form
   144,266.65/199,083.89 = 80,604.45/x
3. Step 3: Cross multiply
   144,266.65x = 199,083.89 × 80,604.45
4. Step 4: Simplify right side
   144,266.65x = 16,047,047,658.82
5. Step 5: Solve for x
   x = 16,047,047,658.82/144,266.65
6. Step 6: Final answer
   x = 111,231.86