Finding the Fourth Proportional to 82,742.69, 124,144.10 and 40,618.32

Step by Step Solution

1. Step 1: Write the proportion equation
   82,742.69 : 124,144.10 = 40,618.32 : x
2. Step 2: Convert to fraction form
   82,742.69/124,144.10 = 40,618.32/x
3. Step 3: Cross multiply
   82,742.69x = 124,144.10 × 40,618.32
4. Step 4: Simplify right side
   82,742.69x = 5,042,524,576.82
5. Step 5: Solve for x
   x = 5,042,524,576.82/82,742.69
6. Step 6: Final answer
   x = 60,942.24