Finding the Fourth Proportional to 8,215.49, 12,330.56 and 3,835.42

Step by Step Solution

1. Step 1: Write the proportion equation
   8,215.49 : 12,330.56 = 3,835.42 : x
2. Step 2: Convert to fraction form
   8,215.49/12,330.56 = 3,835.42/x
3. Step 3: Cross multiply
   8,215.49x = 12,330.56 × 3,835.42
4. Step 4: Simplify right side
   8,215.49x = 47,292,855.20
5. Step 5: Solve for x
   x = 47,292,855.20/8,215.49
6. Step 6: Final answer
   x = 5,756.55