Finding the Fourth Proportional to 8,142.56, 12,215.67 and 3,466.56

Step by Step Solution

1. Step 1: Write the proportion equation
   8,142.56 : 12,215.67 = 3,466.56 : x
2. Step 2: Convert to fraction form
   8,142.56/12,215.67 = 3,466.56/x
3. Step 3: Cross multiply
   8,142.56x = 12,215.67 × 3,466.56
4. Step 4: Simplify right side
   8,142.56x = 42,346,353.00
5. Step 5: Solve for x
   x = 42,346,353.00/8,142.56
6. Step 6: Final answer
   x = 5,200.62