Finding the Fourth Proportional to 59,112.36, 81,588.42 and 40,257

Step by Step Solution

1. Step 1: Write the proportion equation
   59,112.36 : 81,588.42 = 40,257 : x
2. Step 2: Convert to fraction form
   59,112.36/81,588.42 = 40,257/x
3. Step 3: Cross multiply
   59,112.36x = 81,588.42 × 40,257
4. Step 4: Simplify right side
   59,112.36x = 3,284,505,023.94
5. Step 5: Solve for x
   x = 3,284,505,023.94/59,112.36
6. Step 6: Final answer
   x = 55,563.76