Finding the Fourth Proportional to 144,422.71, 199,321.91 and 80,764.09

Step by Step Solution

1. Step 1: Write the proportion equation
   144,422.71 : 199,321.91 = 80,764.09 : x
2. Step 2: Convert to fraction form
   144,422.71/199,321.91 = 80,764.09/x
3. Step 3: Cross multiply
   144,422.71x = 199,321.91 × 80,764.09
4. Step 4: Simplify right side
   144,422.71x = 16,098,052,274.39
5. Step 5: Solve for x
   x = 16,098,052,274.39/144,422.71
6. Step 6: Final answer
   x = 111,464.83