Finding the Fourth Proportional to 4,831.72, 6,665.40 and 3,152.36

Step by Step Solution

1. Step 1: Write the proportion equation
   4,831.72 : 6,665.40 = 3,152.36 : x
2. Step 2: Convert to fraction form
   4,831.72/6,665.40 = 3,152.36/x
3. Step 3: Cross multiply
   4,831.72x = 6,665.40 × 3,152.36
4. Step 4: Simplify right side
   4,831.72x = 21,011,740.34
5. Step 5: Solve for x
   x = 21,011,740.34/4,831.72
6. Step 6: Final answer
   x = 4,348.71