Finding the Fourth Proportional to 8,145.54, 12,217.38 and 3,761.82

Step by Step Solution

1. Step 1: Write the proportion equation
   8,145.54 : 12,217.38 = 3,761.82 : x
2. Step 2: Convert to fraction form
   8,145.54/12,217.38 = 3,761.82/x
3. Step 3: Cross multiply
   8,145.54x = 12,217.38 × 3,761.82
4. Step 4: Simplify right side
   8,145.54x = 45,959,584.43
5. Step 5: Solve for x
   x = 45,959,584.43/8,145.54
6. Step 6: Final answer
   x = 5,642.30