Finding the Fourth Proportional to 6,155.76, 8,494.94 and 3,638.78

Step by Step Solution

1. Step 1: Write the proportion equation
   6,155.76 : 8,494.94 = 3,638.78 : x
2. Step 2: Convert to fraction form
   6,155.76/8,494.94 = 3,638.78/x
3. Step 3: Cross multiply
   6,155.76x = 8,494.94 × 3,638.78
4. Step 4: Simplify right side
   6,155.76x = 30,911,157.10
5. Step 5: Solve for x
   x = 30,911,157.10/6,155.76
6. Step 6: Final answer
   x = 5,021.51