Finding the Fourth Proportional to 144,480.12, 199,395.72 and 80,838.42

Step by Step Solution

1. Step 1: Write the proportion equation
   144,480.12 : 199,395.72 = 80,838.42 : x
2. Step 2: Convert to fraction form
   144,480.12/199,395.72 = 80,838.42/x
3. Step 3: Cross multiply
   144,480.12x = 199,395.72 × 80,838.42
4. Step 4: Simplify right side
   144,480.12x = 16,118,834,959.56
5. Step 5: Solve for x
   x = 16,118,834,959.56/144,480.12
6. Step 6: Final answer
   x = 111,564.38