Finding the Fourth Proportional to 13,021.25, 17,969.31 and 7,053.03

Step by Step Solution

1. Step 1: Write the proportion equation
   13,021.25 : 17,969.31 = 7,053.03 : x
2. Step 2: Convert to fraction form
   13,021.25/17,969.31 = 7,053.03/x
3. Step 3: Cross multiply
   13,021.25x = 17,969.31 × 7,053.03
4. Step 4: Simplify right side
   13,021.25x = 126,738,082.51
5. Step 5: Solve for x
   x = 126,738,082.51/13,021.25
6. Step 6: Final answer
   x = 9,733.18