Finding the Fourth Proportional to 6,168.61, 8,515.46 and 3,933.49

Step by Step Solution

1. Step 1: Write the proportion equation
   6,168.61 : 8,515.46 = 3,933.49 : x
2. Step 2: Convert to fraction form
   6,168.61/8,515.46 = 3,933.49/x
3. Step 3: Cross multiply
   6,168.61x = 8,515.46 × 3,933.49
4. Step 4: Simplify right side
   6,168.61x = 33,495,414.51
5. Step 5: Solve for x
   x = 33,495,414.51/6,168.61
6. Step 6: Final answer
   x = 5,429.98