Finding the Fourth Proportional to 144,343.83, 199,189.12 and 80,682.69

Step by Step Solution

1. Step 1: Write the proportion equation
   144,343.83 : 199,189.12 = 80,682.69 : x
2. Step 2: Convert to fraction form
   144,343.83/199,189.12 = 80,682.69/x
3. Step 3: Cross multiply
   144,343.83x = 199,189.12 × 80,682.69
4. Step 4: Simplify right side
   144,343.83x = 16,071,114,020.33
5. Step 5: Solve for x
   x = 16,071,114,020.33/144,343.83
6. Step 6: Final answer
   x = 111,339.11