Finding the Fourth Proportional to 143,266.14, 197,713.98 and 79,605

Step by Step Solution

1. Step 1: Write the proportion equation
   143,266.14 : 197,713.98 = 79,605 : x
2. Step 2: Convert to fraction form
   143,266.14/197,713.98 = 79,605/x
3. Step 3: Cross multiply
   143,266.14x = 197,713.98 × 79,605
4. Step 4: Simplify right side
   143,266.14x = 15,739,021,377.90
5. Step 5: Solve for x
   x = 15,739,021,377.90/143,266.14
6. Step 6: Final answer
   x = 109,858.63