Finding the Fourth Proportional to 8,491.73, 12,742.56 and 3,560.94

Step by Step Solution

1. Step 1: Write the proportion equation
   8,491.73 : 12,742.56 = 3,560.94 : x
2. Step 2: Convert to fraction form
   8,491.73/12,742.56 = 3,560.94/x
3. Step 3: Cross multiply
   8,491.73x = 12,742.56 × 3,560.94
4. Step 4: Simplify right side
   8,491.73x = 45,375,491.61
5. Step 5: Solve for x
   x = 45,375,491.61/8,491.73
6. Step 6: Final answer
   x = 5,343.50