Finding the Fourth Proportional to 12,857.98, 17,747.58 and 7,481.46

Step by Step Solution

1. Step 1: Write the proportion equation
   12,857.98 : 17,747.58 = 7,481.46 : x
2. Step 2: Convert to fraction form
   12,857.98/17,747.58 = 7,481.46/x
3. Step 3: Cross multiply
   12,857.98x = 17,747.58 × 7,481.46
4. Step 4: Simplify right side
   12,857.98x = 132,777,771.37
5. Step 5: Solve for x
   x = 132,777,771.37/12,857.98
6. Step 6: Final answer
   x = 10,326.49