Finding the Fourth Proportional to 144,308.59, 199,123.55 and 80,634.08

Step by Step Solution

1. Step 1: Write the proportion equation
   144,308.59 : 199,123.55 = 80,634.08 : x
2. Step 2: Convert to fraction form
   144,308.59/199,123.55 = 80,634.08/x
3. Step 3: Cross multiply
   144,308.59x = 199,123.55 × 80,634.08
4. Step 4: Simplify right side
   144,308.59x = 16,056,144,355.22
5. Step 5: Solve for x
   x = 16,056,144,355.22/144,308.59
6. Step 6: Final answer
   x = 111,262.57