Finding the Fourth Proportional to 67,870.08, 93,773.40 and 53,639.04

Step by Step Solution

1. Step 1: Write the proportion equation
   67,870.08 : 93,773.40 = 53,639.04 : x
2. Step 2: Convert to fraction form
   67,870.08/93,773.40 = 53,639.04/x
3. Step 3: Cross multiply
   67,870.08x = 93,773.40 × 53,639.04
4. Step 4: Simplify right side
   67,870.08x = 5,029,915,153.54
5. Step 5: Solve for x
   x = 5,029,915,153.54/67,870.08
6. Step 6: Final answer
   x = 74,110.94