Finding the Fourth Proportional to 6,144.31, 8,475.91 and 4,155.54

Step by Step Solution

1. Step 1: Write the proportion equation
   6,144.31 : 8,475.91 = 4,155.54 : x
2. Step 2: Convert to fraction form
   6,144.31/8,475.91 = 4,155.54/x
3. Step 3: Cross multiply
   6,144.31x = 8,475.91 × 4,155.54
4. Step 4: Simplify right side
   6,144.31x = 35,221,983.04
5. Step 5: Solve for x
   x = 35,221,983.04/6,144.31
6. Step 6: Final answer
   x = 5,732.46