Finding the Fourth Proportional to 143,114.88, 197,488.71 and 79,447.71

Step by Step Solution

1. Step 1: Write the proportion equation
   143,114.88 : 197,488.71 = 79,447.71 : x
2. Step 2: Convert to fraction form
   143,114.88/197,488.71 = 79,447.71/x
3. Step 3: Cross multiply
   143,114.88x = 197,488.71 × 79,447.71
4. Step 4: Simplify right side
   143,114.88x = 15,690,025,760.35
5. Step 5: Solve for x
   x = 15,690,025,760.35/143,114.88
6. Step 6: Final answer
   x = 109,632.39