Finding the Fourth Proportional to 82,406.36, 123,535.73 and 42,918.26

Step by Step Solution

1. Step 1: Write the proportion equation
   82,406.36 : 123,535.73 = 42,918.26 : x
2. Step 2: Convert to fraction form
   82,406.36/123,535.73 = 42,918.26/x
3. Step 3: Cross multiply
   82,406.36x = 123,535.73 × 42,918.26
4. Step 4: Simplify right side
   82,406.36x = 5,301,938,069.05
5. Step 5: Solve for x
   x = 5,301,938,069.05/82,406.36
6. Step 6: Final answer
   x = 64,338.94