Finding the Fourth Proportional to 10,491.31, 15,735.61 and 3,096.55

Step by Step Solution

1. Step 1: Write the proportion equation
   10,491.31 : 15,735.61 = 3,096.55 : x
2. Step 2: Convert to fraction form
   10,491.31/15,735.61 = 3,096.55/x
3. Step 3: Cross multiply
   10,491.31x = 15,735.61 × 3,096.55
4. Step 4: Simplify right side
   10,491.31x = 48,726,103.15
5. Step 5: Solve for x
   x = 48,726,103.15/10,491.31
6. Step 6: Final answer
   x = 4,644.43