Finding the Fourth Proportional to 143,144.28, 197,536.05 and 79,480.98

Step by Step Solution

1. Step 1: Write the proportion equation
   143,144.28 : 197,536.05 = 79,480.98 : x
2. Step 2: Convert to fraction form
   143,144.28/197,536.05 = 79,480.98/x
3. Step 3: Cross multiply
   143,144.28x = 197,536.05 × 79,480.98
4. Step 4: Simplify right side
   143,144.28x = 15,700,358,839.33
5. Step 5: Solve for x
   x = 15,700,358,839.33/143,144.28
6. Step 6: Final answer
   x = 109,682.06