Finding the Fourth Proportional to 105,078.60, 145,008.42 and 67,352.82

Step by Step Solution

1. Step 1: Write the proportion equation
   105,078.60 : 145,008.42 = 67,352.82 : x
2. Step 2: Convert to fraction form
   105,078.60/145,008.42 = 67,352.82/x
3. Step 3: Cross multiply
   105,078.60x = 145,008.42 × 67,352.82
4. Step 4: Simplify right side
   105,078.60x = 9,766,726,010.74
5. Step 5: Solve for x
   x = 9,766,726,010.74/105,078.60
6. Step 6: Final answer
   x = 92,946.86