Finding the Fourth Proportional to 54,084.12, 80,928.82 and 31,908.12

Step by Step Solution

1. Step 1: Write the proportion equation
   54,084.12 : 80,928.82 = 31,908.12 : x
2. Step 2: Convert to fraction form
   54,084.12/80,928.82 = 31,908.12/x
3. Step 3: Cross multiply
   54,084.12x = 80,928.82 × 31,908.12
4. Step 4: Simplify right side
   54,084.12x = 2,582,286,500.02
5. Step 5: Solve for x
   x = 2,582,286,500.02/54,084.12
6. Step 6: Final answer
   x = 47,745.74