Finding the Fourth Proportional to 79,976.22, 119,978.94 and 40,016.10

Step by Step Solution

1. Step 1: Write the proportion equation
   79,976.22 : 119,978.94 = 40,016.10 : x
2. Step 2: Convert to fraction form
   79,976.22/119,978.94 = 40,016.10/x
3. Step 3: Cross multiply
   79,976.22x = 119,978.94 × 40,016.10
4. Step 4: Simplify right side
   79,976.22x = 4,801,089,260.93
5. Step 5: Solve for x
   x = 4,801,089,260.93/79,976.22
6. Step 6: Final answer
   x = 60,031.46