Finding the Fourth Proportional to 6,128.06, 8,456.16 and 4,141.28

Step by Step Solution

1. Step 1: Write the proportion equation
   6,128.06 : 8,456.16 = 4,141.28 : x
2. Step 2: Convert to fraction form
   6,128.06/8,456.16 = 4,141.28/x
3. Step 3: Cross multiply
   6,128.06x = 8,456.16 × 4,141.28
4. Step 4: Simplify right side
   6,128.06x = 35,019,326.28
5. Step 5: Solve for x
   x = 35,019,326.28/6,128.06
6. Step 6: Final answer
   x = 5,714.59