Finding the Fourth Proportional to 8,957.48, 12,361.56 and 5,180.27

Step by Step Solution

1. Step 1: Write the proportion equation
   8,957.48 : 12,361.56 = 5,180.27 : x
2. Step 2: Convert to fraction form
   8,957.48/12,361.56 = 5,180.27/x
3. Step 3: Cross multiply
   8,957.48x = 12,361.56 × 5,180.27
4. Step 4: Simplify right side
   8,957.48x = 64,036,156.61
5. Step 5: Solve for x
   x = 64,036,156.61/8,957.48
6. Step 6: Final answer
   x = 7,148.91