Finding the Fourth Proportional to 17,142.89, 25,714.56 and 5,456.11

Step by Step Solution

1. Step 1: Write the proportion equation
   17,142.89 : 25,714.56 = 5,456.11 : x
2. Step 2: Convert to fraction form
   17,142.89/25,714.56 = 5,456.11/x
3. Step 3: Cross multiply
   17,142.89x = 25,714.56 × 5,456.11
4. Step 4: Simplify right side
   17,142.89x = 140,301,472.35
5. Step 5: Solve for x
   x = 140,301,472.35/17,142.89
6. Step 6: Final answer
   x = 8,184.24