Finding the Fourth Proportional to 10,606.72, 15,911.04 and 4,365.28

Step by Step Solution

1. Step 1: Write the proportion equation
   10,606.72 : 15,911.04 = 4,365.28 : x
2. Step 2: Convert to fraction form
   10,606.72/15,911.04 = 4,365.28/x
3. Step 3: Cross multiply
   10,606.72x = 15,911.04 × 4,365.28
4. Step 4: Simplify right side
   10,606.72x = 69,456,144.69
5. Step 5: Solve for x
   x = 69,456,144.69/10,606.72
6. Step 6: Final answer
   x = 6,548.32