Finding the Fourth Proportional to 79,983.31, 120,048.77 and 40,568.10

Step by Step Solution

1. Step 1: Write the proportion equation
   79,983.31 : 120,048.77 = 40,568.10 : x
2. Step 2: Convert to fraction form
   79,983.31/120,048.77 = 40,568.10/x
3. Step 3: Cross multiply
   79,983.31x = 120,048.77 × 40,568.10
4. Step 4: Simplify right side
   79,983.31x = 4,870,150,506.24
5. Step 5: Solve for x
   x = 4,870,150,506.24/79,983.31
6. Step 6: Final answer
   x = 60,889.58