Finding the Fourth Proportional to 8,520.24, 12,784.56 and 3,843.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,520.24 : 12,784.56 = 3,843.50 : x
2. Step 2: Convert to fraction form
   8,520.24/12,784.56 = 3,843.50/x
3. Step 3: Cross multiply
   8,520.24x = 12,784.56 × 3,843.50
4. Step 4: Simplify right side
   8,520.24x = 49,137,460.75
5. Step 5: Solve for x
   x = 49,137,460.75/8,520.24
6. Step 6: Final answer
   x = 5,767.15