Finding the Fourth Proportional to 79,871.69, 119,881.31 and 40,456.48

Step by Step Solution

1. Step 1: Write the proportion equation
   79,871.69 : 119,881.31 = 40,456.48 : x
2. Step 2: Convert to fraction form
   79,871.69/119,881.31 = 40,456.48/x
3. Step 3: Cross multiply
   79,871.69x = 119,881.31 × 40,456.48
4. Step 4: Simplify right side
   79,871.69x = 4,849,975,820.39
5. Step 5: Solve for x
   x = 4,849,975,820.39/79,871.69
6. Step 6: Final answer
   x = 60,722.09