Finding the Fourth Proportional to 143,196.25, 197,610.84 and 79,539.97

Step by Step Solution

1. Step 1: Write the proportion equation
   143,196.25 : 197,610.84 = 79,539.97 : x
2. Step 2: Convert to fraction form
   143,196.25/197,610.84 = 79,539.97/x
3. Step 3: Cross multiply
   143,196.25x = 197,610.84 × 79,539.97
4. Step 4: Simplify right side
   143,196.25x = 15,717,960,285.27
5. Step 5: Solve for x
   x = 15,717,960,285.27/143,196.25
6. Step 6: Final answer
   x = 109,765.17