Finding the Fourth Proportional to 6,123.93, 8,449.55 and 3,885

Step by Step Solution

1. Step 1: Write the proportion equation
   6,123.93 : 8,449.55 = 3,885 : x
2. Step 2: Convert to fraction form
   6,123.93/8,449.55 = 3,885/x
3. Step 3: Cross multiply
   6,123.93x = 8,449.55 × 3,885
4. Step 4: Simplify right side
   6,123.93x = 32,826,482.33
5. Step 5: Solve for x
   x = 32,826,482.33/6,123.93
6. Step 6: Final answer
   x = 5,360.36