Finding the Fourth Proportional to 143,067.16, 197,432.67 and 79,404.94

Step by Step Solution

1. Step 1: Write the proportion equation
   143,067.16 : 197,432.67 = 79,404.94 : x
2. Step 2: Convert to fraction form
   143,067.16/197,432.67 = 79,404.94/x
3. Step 3: Cross multiply
   143,067.16x = 197,432.67 × 79,404.94
4. Step 4: Simplify right side
   143,067.16x = 15,677,129,315.39
5. Step 5: Solve for x
   x = 15,677,129,315.39/143,067.16
6. Step 6: Final answer
   x = 109,578.81