Finding the Fourth Proportional to 81,727.38, 122,528.76 and 42,259.32

Step by Step Solution

1. Step 1: Write the proportion equation
   81,727.38 : 122,528.76 = 42,259.32 : x
2. Step 2: Convert to fraction form
   81,727.38/122,528.76 = 42,259.32/x
3. Step 3: Cross multiply
   81,727.38x = 122,528.76 × 42,259.32
4. Step 4: Simplify right side
   81,727.38x = 5,177,982,078.04
5. Step 5: Solve for x
   x = 5,177,982,078.04/81,727.38
6. Step 6: Final answer
   x = 63,356.76