Finding the Fourth Proportional to 12,762.28, 17,614.02 and 10,665.64

Step by Step Solution

1. Step 1: Write the proportion equation
   12,762.28 : 17,614.02 = 10,665.64 : x
2. Step 2: Convert to fraction form
   12,762.28/17,614.02 = 10,665.64/x
3. Step 3: Cross multiply
   12,762.28x = 17,614.02 × 10,665.64
4. Step 4: Simplify right side
   12,762.28x = 187,864,796.27
5. Step 5: Solve for x
   x = 187,864,796.27/12,762.28
6. Step 6: Final answer
   x = 14,720.32