Finding the Fourth Proportional to 8,280.84, 12,404.78 and 3,884.92

Step by Step Solution

1. Step 1: Write the proportion equation
   8,280.84 : 12,404.78 = 3,884.92 : x
2. Step 2: Convert to fraction form
   8,280.84/12,404.78 = 3,884.92/x
3. Step 3: Cross multiply
   8,280.84x = 12,404.78 × 3,884.92
4. Step 4: Simplify right side
   8,280.84x = 48,191,577.92
5. Step 5: Solve for x
   x = 48,191,577.92/8,280.84
6. Step 6: Final answer
   x = 5,819.65