Finding the Fourth Proportional to 8,142.87, 12,211.86 and 3,462.84

Step by Step Solution

1. Step 1: Write the proportion equation
   8,142.87 : 12,211.86 = 3,462.84 : x
2. Step 2: Convert to fraction form
   8,142.87/12,211.86 = 3,462.84/x
3. Step 3: Cross multiply
   8,142.87x = 12,211.86 × 3,462.84
4. Step 4: Simplify right side
   8,142.87x = 42,287,717.28
5. Step 5: Solve for x
   x = 42,287,717.28/8,142.87
6. Step 6: Final answer
   x = 5,193.22