Finding the Fourth Proportional to 6,123.30, 8,450.05 and 3,328.78

Step by Step Solution

1. Step 1: Write the proportion equation
   6,123.30 : 8,450.05 = 3,328.78 : x
2. Step 2: Convert to fraction form
   6,123.30/8,450.05 = 3,328.78/x
3. Step 3: Cross multiply
   6,123.30x = 8,450.05 × 3,328.78
4. Step 4: Simplify right side
   6,123.30x = 28,128,357.44
5. Step 5: Solve for x
   x = 28,128,357.44/6,123.30
6. Step 6: Final answer
   x = 4,593.66