Finding the Fourth Proportional to 10,487.16, 14,461.56 and 9,576.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,487.16 : 14,461.56 = 9,576.72 : x
2. Step 2: Convert to fraction form
   10,487.16/14,461.56 = 9,576.72/x
3. Step 3: Cross multiply
   10,487.16x = 14,461.56 × 9,576.72
4. Step 4: Simplify right side
   10,487.16x = 138,494,310.88
5. Step 5: Solve for x
   x = 138,494,310.88/10,487.16
6. Step 6: Final answer
   x = 13,206.08