Finding the Fourth Proportional to 6,128.60, 8,452.55 and 4,003.97

Step by Step Solution

1. Step 1: Write the proportion equation
   6,128.60 : 8,452.55 = 4,003.97 : x
2. Step 2: Convert to fraction form
   6,128.60/8,452.55 = 4,003.97/x
3. Step 3: Cross multiply
   6,128.60x = 8,452.55 × 4,003.97
4. Step 4: Simplify right side
   6,128.60x = 33,843,724.37
5. Step 5: Solve for x
   x = 33,843,724.37/6,128.60
6. Step 6: Final answer
   x = 5,522.26