Finding the Fourth Proportional to 23,157.83, 31,957.92 and 12,547.49

Step by Step Solution

1. Step 1: Write the proportion equation
   23,157.83 : 31,957.92 = 12,547.49 : x
2. Step 2: Convert to fraction form
   23,157.83/31,957.92 = 12,547.49/x
3. Step 3: Cross multiply
   23,157.83x = 31,957.92 × 12,547.49
4. Step 4: Simplify right side
   23,157.83x = 400,991,521.83
5. Step 5: Solve for x
   x = 400,991,521.83/23,157.83
6. Step 6: Final answer
   x = 17,315.59