Finding the Fourth Proportional to 8,086.05, 12,118.77 and 3,638.94

Step by Step Solution

1. Step 1: Write the proportion equation
   8,086.05 : 12,118.77 = 3,638.94 : x
2. Step 2: Convert to fraction form
   8,086.05/12,118.77 = 3,638.94/x
3. Step 3: Cross multiply
   8,086.05x = 12,118.77 × 3,638.94
4. Step 4: Simplify right side
   8,086.05x = 44,099,476.90
5. Step 5: Solve for x
   x = 44,099,476.90/8,086.05
6. Step 6: Final answer
   x = 5,453.77