Finding the Fourth Proportional to 144,265.89, 199,082.86 and 80,603.69

Step by Step Solution

1. Step 1: Write the proportion equation
   144,265.89 : 199,082.86 = 80,603.69 : x
2. Step 2: Convert to fraction form
   144,265.89/199,082.86 = 80,603.69/x
3. Step 3: Cross multiply
   144,265.89x = 199,082.86 × 80,603.69
4. Step 4: Simplify right side
   144,265.89x = 16,046,813,131.75
5. Step 5: Solve for x
   x = 16,046,813,131.75/144,265.89
6. Step 6: Final answer
   x = 111,230.82