Finding the Fourth Proportional to 8,142.74, 12,215.73 and 3,462.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,142.74 : 12,215.73 = 3,462.72 : x
2. Step 2: Convert to fraction form
   8,142.74/12,215.73 = 3,462.72/x
3. Step 3: Cross multiply
   8,142.74x = 12,215.73 × 3,462.72
4. Step 4: Simplify right side
   8,142.74x = 42,299,619.76
5. Step 5: Solve for x
   x = 42,299,619.76/8,142.74
6. Step 6: Final answer
   x = 5,194.77