Finding the Fourth Proportional to 82,268.31, 123,386.85 and 40,105.99

Step by Step Solution

1. Step 1: Write the proportion equation
   82,268.31 : 123,386.85 = 40,105.99 : x
2. Step 2: Convert to fraction form
   82,268.31/123,386.85 = 40,105.99/x
3. Step 3: Cross multiply
   82,268.31x = 123,386.85 × 40,105.99
4. Step 4: Simplify right side
   82,268.31x = 4,948,551,463.76
5. Step 5: Solve for x
   x = 4,948,551,463.76/82,268.31
6. Step 6: Final answer
   x = 60,151.37