Finding the Fourth Proportional to 10,020.72, 14,969.64 and 7,223.52

Step by Step Solution

1. Step 1: Write the proportion equation
   10,020.72 : 14,969.64 = 7,223.52 : x
2. Step 2: Convert to fraction form
   10,020.72/14,969.64 = 7,223.52/x
3. Step 3: Cross multiply
   10,020.72x = 14,969.64 × 7,223.52
4. Step 4: Simplify right side
   10,020.72x = 108,133,493.93
5. Step 5: Solve for x
   x = 108,133,493.93/10,020.72
6. Step 6: Final answer
   x = 10,790.99