Finding the Fourth Proportional to 105,857.94, 146,078.60 and 62,839.27

Step by Step Solution

1. Step 1: Write the proportion equation
   105,857.94 : 146,078.60 = 62,839.27 : x
2. Step 2: Convert to fraction form
   105,857.94/146,078.60 = 62,839.27/x
3. Step 3: Cross multiply
   105,857.94x = 146,078.60 × 62,839.27
4. Step 4: Simplify right side
   105,857.94x = 9,179,471,907.23
5. Step 5: Solve for x
   x = 9,179,471,907.23/105,857.94
6. Step 6: Final answer
   x = 86,715.01