Finding the Fourth Proportional to 10,176.45, 14,019.53 and 9,564.09

Step by Step Solution

1. Step 1: Write the proportion equation
   10,176.45 : 14,019.53 = 9,564.09 : x
2. Step 2: Convert to fraction form
   10,176.45/14,019.53 = 9,564.09/x
3. Step 3: Cross multiply
   10,176.45x = 14,019.53 × 9,564.09
4. Step 4: Simplify right side
   10,176.45x = 134,083,998.86
5. Step 5: Solve for x
   x = 134,083,998.86/10,176.45
6. Step 6: Final answer
   x = 13,175.91