Finding the Fourth Proportional to 6,123.10, 8,449.80 and 3,328.60

Step by Step Solution

1. Step 1: Write the proportion equation
   6,123.10 : 8,449.80 = 3,328.60 : x
2. Step 2: Convert to fraction form
   6,123.10/8,449.80 = 3,328.60/x
3. Step 3: Cross multiply
   6,123.10x = 8,449.80 × 3,328.60
4. Step 4: Simplify right side
   6,123.10x = 28,126,004.28
5. Step 5: Solve for x
   x = 28,126,004.28/6,123.10
6. Step 6: Final answer
   x = 4,593.43