Finding the Fourth Proportional to 8,142.61, 12,215.54 and 3,462.59

Step by Step Solution

1. Step 1: Write the proportion equation
   8,142.61 : 12,215.54 = 3,462.59 : x
2. Step 2: Convert to fraction form
   8,142.61/12,215.54 = 3,462.59/x
3. Step 3: Cross multiply
   8,142.61x = 12,215.54 × 3,462.59
4. Step 4: Simplify right side
   8,142.61x = 42,297,406.65
5. Step 5: Solve for x
   x = 42,297,406.65/8,142.61
6. Step 6: Final answer
   x = 5,194.58