Finding the Fourth Proportional to 144,293.98, 199,121.88 and 80,632.30

Step by Step Solution

1. Step 1: Write the proportion equation
   144,293.98 : 199,121.88 = 80,632.30 : x
2. Step 2: Convert to fraction form
   144,293.98/199,121.88 = 80,632.30/x
3. Step 3: Cross multiply
   144,293.98x = 199,121.88 × 80,632.30
4. Step 4: Simplify right side
   144,293.98x = 16,055,655,164.72
5. Step 5: Solve for x
   x = 16,055,655,164.72/144,293.98
6. Step 6: Final answer
   x = 111,270.44