Finding the Fourth Proportional to 144,773.94, 199,793.53 and 81,109.56

Step by Step Solution

1. Step 1: Write the proportion equation
   144,773.94 : 199,793.53 = 81,109.56 : x
2. Step 2: Convert to fraction form
   144,773.94/199,793.53 = 81,109.56/x
3. Step 3: Cross multiply
   144,773.94x = 199,793.53 × 81,109.56
4. Step 4: Simplify right side
   144,773.94x = 16,205,165,309.15
5. Step 5: Solve for x
   x = 16,205,165,309.15/144,773.94
6. Step 6: Final answer
   x = 111,934.27