Finding the Fourth Proportional to 6,156.76, 8,494.48 and 3,639.08

Step by Step Solution

1. Step 1: Write the proportion equation
   6,156.76 : 8,494.48 = 3,639.08 : x
2. Step 2: Convert to fraction form
   6,156.76/8,494.48 = 3,639.08/x
3. Step 3: Cross multiply
   6,156.76x = 8,494.48 × 3,639.08
4. Step 4: Simplify right side
   6,156.76x = 30,912,092.28
5. Step 5: Solve for x
   x = 30,912,092.28/6,156.76
6. Step 6: Final answer
   x = 5,020.84