Finding the Fourth Proportional to 9,182.81, 12,672.28 and 5,456.81

Step by Step Solution

1. Step 1: Write the proportion equation
   9,182.81 : 12,672.28 = 5,456.81 : x
2. Step 2: Convert to fraction form
   9,182.81/12,672.28 = 5,456.81/x
3. Step 3: Cross multiply
   9,182.81x = 12,672.28 × 5,456.81
4. Step 4: Simplify right side
   9,182.81x = 69,150,262.73
5. Step 5: Solve for x
   x = 69,150,262.73/9,182.81
6. Step 6: Final answer
   x = 7,530.40