Finding the Fourth Proportional to 105,542.82, 145,650.78 and 57,795.33

Step by Step Solution

1. Step 1: Write the proportion equation
   105,542.82 : 145,650.78 = 57,795.33 : x
2. Step 2: Convert to fraction form
   105,542.82/145,650.78 = 57,795.33/x
3. Step 3: Cross multiply
   105,542.82x = 145,650.78 × 57,795.33
4. Step 4: Simplify right side
   105,542.82x = 8,417,934,894.86
5. Step 5: Solve for x
   x = 8,417,934,894.86/105,542.82
6. Step 6: Final answer
   x = 79,758.48