Finding the Fourth Proportional to 105,078.94, 145,017.54 and 59,771.11

Step by Step Solution

1. Step 1: Write the proportion equation
   105,078.94 : 145,017.54 = 59,771.11 : x
2. Step 2: Convert to fraction form
   105,078.94/145,017.54 = 59,771.11/x
3. Step 3: Cross multiply
   105,078.94x = 145,017.54 × 59,771.11
4. Step 4: Simplify right side
   105,078.94x = 8,667,859,335.27
5. Step 5: Solve for x
   x = 8,667,859,335.27/105,078.94
6. Step 6: Final answer
   x = 82,489.03