Finding the Fourth Proportional to 79,479.18, 119,287.98 and 42,066.12

Step by Step Solution

1. Step 1: Write the proportion equation
   79,479.18 : 119,287.98 = 42,066.12 : x
2. Step 2: Convert to fraction form
   79,479.18/119,287.98 = 42,066.12/x
3. Step 3: Cross multiply
   79,479.18x = 119,287.98 × 42,066.12
4. Step 4: Simplify right side
   79,479.18x = 5,017,982,481.24
5. Step 5: Solve for x
   x = 5,017,982,481.24/79,479.18
6. Step 6: Final answer
   x = 63,135.81