Finding the Fourth Proportional to 54,078.12, 80,919.82 and 31,902.12

Step by Step Solution

1. Step 1: Write the proportion equation
   54,078.12 : 80,919.82 = 31,902.12 : x
2. Step 2: Convert to fraction form
   54,078.12/80,919.82 = 31,902.12/x
3. Step 3: Cross multiply
   54,078.12x = 80,919.82 × 31,902.12
4. Step 4: Simplify right side
   54,078.12x = 2,581,513,808.02
5. Step 5: Solve for x
   x = 2,581,513,808.02/54,078.12
6. Step 6: Final answer
   x = 47,736.75