Finding the Fourth Proportional to 8,784.42, 13,179.34 and 3,519.42

Step by Step Solution

1. Step 1: Write the proportion equation
   8,784.42 : 13,179.34 = 3,519.42 : x
2. Step 2: Convert to fraction form
   8,784.42/13,179.34 = 3,519.42/x
3. Step 3: Cross multiply
   8,784.42x = 13,179.34 × 3,519.42
4. Step 4: Simplify right side
   8,784.42x = 46,383,632.78
5. Step 5: Solve for x
   x = 46,383,632.78/8,784.42
6. Step 6: Final answer
   x = 5,280.22