Finding the Fourth Proportional to 82,816.27, 124,173.78 and 40,642.81

Step by Step Solution

1. Step 1: Write the proportion equation
   82,816.27 : 124,173.78 = 40,642.81 : x
2. Step 2: Convert to fraction form
   82,816.27/124,173.78 = 40,642.81/x
3. Step 3: Cross multiply
   82,816.27x = 124,173.78 × 40,642.81
4. Step 4: Simplify right side
   82,816.27x = 5,046,771,347.52
5. Step 5: Solve for x
   x = 5,046,771,347.52/82,816.27
6. Step 6: Final answer
   x = 60,939.37