Finding the Fourth Proportional to 142,824.47, 197,103.98 and 79,162.31

Step by Step Solution

1. Step 1: Write the proportion equation
   142,824.47 : 197,103.98 = 79,162.31 : x
2. Step 2: Convert to fraction form
   142,824.47/197,103.98 = 79,162.31/x
3. Step 3: Cross multiply
   142,824.47x = 197,103.98 × 79,162.31
4. Step 4: Simplify right side
   142,824.47x = 15,603,207,057.66
5. Step 5: Solve for x
   x = 15,603,207,057.66/142,824.47
6. Step 6: Final answer
   x = 109,247.44