Finding the Fourth Proportional to 6,123.87, 8,452.85 and 3,605.78

Step by Step Solution

1. Step 1: Write the proportion equation
   6,123.87 : 8,452.85 = 3,605.78 : x
2. Step 2: Convert to fraction form
   6,123.87/8,452.85 = 3,605.78/x
3. Step 3: Cross multiply
   6,123.87x = 8,452.85 × 3,605.78
4. Step 4: Simplify right side
   6,123.87x = 30,479,117.47
5. Step 5: Solve for x
   x = 30,479,117.47/6,123.87
6. Step 6: Final answer
   x = 4,977.10