Finding the Fourth Proportional to 144,404.91, 199,278.09 and 80,742.69

Step by Step Solution

1. Step 1: Write the proportion equation
   144,404.91 : 199,278.09 = 80,742.69 : x
2. Step 2: Convert to fraction form
   144,404.91/199,278.09 = 80,742.69/x
3. Step 3: Cross multiply
   144,404.91x = 199,278.09 × 80,742.69
4. Step 4: Simplify right side
   144,404.91x = 16,090,249,044.66
5. Step 5: Solve for x
   x = 16,090,249,044.66/144,404.91
6. Step 6: Final answer
   x = 111,424.53