Finding the Fourth Proportional to 13,022.48, 17,969.96 and 7,357.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,022.48 : 17,969.96 = 7,357.72 : x
2. Step 2: Convert to fraction form
   13,022.48/17,969.96 = 7,357.72/x
3. Step 3: Cross multiply
   13,022.48x = 17,969.96 × 7,357.72
4. Step 4: Simplify right side
   13,022.48x = 132,217,897.30
5. Step 5: Solve for x
   x = 132,217,897.30/13,022.48
6. Step 6: Final answer
   x = 10,153.05