Finding the Fourth Proportional to 23,568.09, 32,521.87 and 12,957.49

Step by Step Solution

1. Step 1: Write the proportion equation
   23,568.09 : 32,521.87 = 12,957.49 : x
2. Step 2: Convert to fraction form
   23,568.09/32,521.87 = 12,957.49/x
3. Step 3: Cross multiply
   23,568.09x = 32,521.87 × 12,957.49
4. Step 4: Simplify right side
   23,568.09x = 421,401,805.31
5. Step 5: Solve for x
   x = 421,401,805.31/23,568.09
6. Step 6: Final answer
   x = 17,880.18