Finding the Fourth Proportional to 13,020.24, 17,968.32 and 7,355.28

Step by Step Solution

1. Step 1: Write the proportion equation
   13,020.24 : 17,968.32 = 7,355.28 : x
2. Step 2: Convert to fraction form
   13,020.24/17,968.32 = 7,355.28/x
3. Step 3: Cross multiply
   13,020.24x = 17,968.32 × 7,355.28
4. Step 4: Simplify right side
   13,020.24x = 132,162,024.73
5. Step 5: Solve for x
   x = 132,162,024.73/13,020.24
6. Step 6: Final answer
   x = 10,150.51