Finding the Fourth Proportional to 5,057.92, 7,632.56 and 4,902.09

Step by Step Solution

1. Step 1: Write the proportion equation
   5,057.92 : 7,632.56 = 4,902.09 : x
2. Step 2: Convert to fraction form
   5,057.92/7,632.56 = 4,902.09/x
3. Step 3: Cross multiply
   5,057.92x = 7,632.56 × 4,902.09
4. Step 4: Simplify right side
   5,057.92x = 37,415,496.05
5. Step 5: Solve for x
   x = 37,415,496.05/5,057.92
6. Step 6: Final answer
   x = 7,397.41