Finding the Fourth Proportional to 8,507.76, 12,766.56 and 3,576.96

Step by Step Solution

1. Step 1: Write the proportion equation
   8,507.76 : 12,766.56 = 3,576.96 : x
2. Step 2: Convert to fraction form
   8,507.76/12,766.56 = 3,576.96/x
3. Step 3: Cross multiply
   8,507.76x = 12,766.56 × 3,576.96
4. Step 4: Simplify right side
   8,507.76x = 45,665,474.46
5. Step 5: Solve for x
   x = 45,665,474.46/8,507.76
6. Step 6: Final answer
   x = 5,367.51