Finding the Fourth Proportional to 8,499.47, 12,741.89 and 3,231.54

Step by Step Solution

1. Step 1: Write the proportion equation
   8,499.47 : 12,741.89 = 3,231.54 : x
2. Step 2: Convert to fraction form
   8,499.47/12,741.89 = 3,231.54/x
3. Step 3: Cross multiply
   8,499.47x = 12,741.89 × 3,231.54
4. Step 4: Simplify right side
   8,499.47x = 41,175,911.05
5. Step 5: Solve for x
   x = 41,175,911.05/8,499.47
6. Step 6: Final answer
   x = 4,844.53