Finding the Fourth Proportional to 8,087.88, 12,134.83 and 3,644.21

Step by Step Solution

1. Step 1: Write the proportion equation
   8,087.88 : 12,134.83 = 3,644.21 : x
2. Step 2: Convert to fraction form
   8,087.88/12,134.83 = 3,644.21/x
3. Step 3: Cross multiply
   8,087.88x = 12,134.83 × 3,644.21
4. Step 4: Simplify right side
   8,087.88x = 44,221,868.83
5. Step 5: Solve for x
   x = 44,221,868.83/8,087.88
6. Step 6: Final answer
   x = 5,467.67