Finding the Fourth Proportional to 112,629.70, 155,413.60 and 67,298.10

Step by Step Solution

1. Step 1: Write the proportion equation
   112,629.70 : 155,413.60 = 67,298.10 : x
2. Step 2: Convert to fraction form
   112,629.70/155,413.60 = 67,298.10/x
3. Step 3: Cross multiply
   112,629.70x = 155,413.60 × 67,298.10
4. Step 4: Simplify right side
   112,629.70x = 10,459,039,994.16
5. Step 5: Solve for x
   x = 10,459,039,994.16/112,629.70
6. Step 6: Final answer
   x = 92,862.18