Finding the Fourth Proportional to 143,033.35, 197,395.25 and 79,371.15

Step by Step Solution

1. Step 1: Write the proportion equation
   143,033.35 : 197,395.25 = 79,371.15 : x
2. Step 2: Convert to fraction form
   143,033.35/197,395.25 = 79,371.15/x
3. Step 3: Cross multiply
   143,033.35x = 197,395.25 × 79,371.15
4. Step 4: Simplify right side
   143,033.35x = 15,667,488,084.82
5. Step 5: Solve for x
   x = 15,667,488,084.82/143,033.35
6. Step 6: Final answer
   x = 109,537.31