Finding the Fourth Proportional to 8,143.54, 12,215.34 and 3,462.88

Step by Step Solution

1. Step 1: Write the proportion equation
   8,143.54 : 12,215.34 = 3,462.88 : x
2. Step 2: Convert to fraction form
   8,143.54/12,215.34 = 3,462.88/x
3. Step 3: Cross multiply
   8,143.54x = 12,215.34 × 3,462.88
4. Step 4: Simplify right side
   8,143.54x = 42,300,256.58
5. Step 5: Solve for x
   x = 42,300,256.58/8,143.54
6. Step 6: Final answer
   x = 5,194.33