Finding the Fourth Proportional to 144,436.77, 199,320.75 and 80,774.42

Step by Step Solution

1. Step 1: Write the proportion equation
   144,436.77 : 199,320.75 = 80,774.42 : x
2. Step 2: Convert to fraction form
   144,436.77/199,320.75 = 80,774.42/x
3. Step 3: Cross multiply
   144,436.77x = 199,320.75 × 80,774.42
4. Step 4: Simplify right side
   144,436.77x = 16,100,016,978.61
5. Step 5: Solve for x
   x = 16,100,016,978.61/144,436.77
6. Step 6: Final answer
   x = 111,467.58