Finding the Fourth Proportional to 6,156.27, 8,493.78 and 3,638.61

Step by Step Solution

1. Step 1: Write the proportion equation
   6,156.27 : 8,493.78 = 3,638.61 : x
2. Step 2: Convert to fraction form
   6,156.27/8,493.78 = 3,638.61/x
3. Step 3: Cross multiply
   6,156.27x = 8,493.78 × 3,638.61
4. Step 4: Simplify right side
   6,156.27x = 30,905,552.85
5. Step 5: Solve for x
   x = 30,905,552.85/6,156.27
6. Step 6: Final answer
   x = 5,020.18