Finding the Fourth Proportional to 8,142.82, 11,236.89 and 4,557.83

Step by Step Solution

1. Step 1: Write the proportion equation
   8,142.82 : 11,236.89 = 4,557.83 : x
2. Step 2: Convert to fraction form
   8,142.82/11,236.89 = 4,557.83/x
3. Step 3: Cross multiply
   8,142.82x = 11,236.89 × 4,557.83
4. Step 4: Simplify right side
   8,142.82x = 51,215,789.56
5. Step 5: Solve for x
   x = 51,215,789.56/8,142.82
6. Step 6: Final answer
   x = 6,289.69