Finding the Fourth Proportional to 105,401.52, 145,413.23 and 67,154.23

Step by Step Solution

1. Step 1: Write the proportion equation
   105,401.52 : 145,413.23 = 67,154.23 : x
2. Step 2: Convert to fraction form
   105,401.52/145,413.23 = 67,154.23/x
3. Step 3: Cross multiply
   105,401.52x = 145,413.23 × 67,154.23
4. Step 4: Simplify right side
   105,401.52x = 9,765,113,338.46
5. Step 5: Solve for x
   x = 9,765,113,338.46/105,401.52
6. Step 6: Final answer
   x = 92,646.80