Finding the Fourth Proportional to 5,124.57, 7,636.50 and 4,957.35

Step by Step Solution

1. Step 1: Write the proportion equation
   5,124.57 : 7,636.50 = 4,957.35 : x
2. Step 2: Convert to fraction form
   5,124.57/7,636.50 = 4,957.35/x
3. Step 3: Cross multiply
   5,124.57x = 7,636.50 × 4,957.35
4. Step 4: Simplify right side
   5,124.57x = 37,856,831.54
5. Step 5: Solve for x
   x = 37,856,831.54/5,124.57
6. Step 6: Final answer
   x = 7,387.32