Finding the Fourth Proportional to 12,573.24, 17,351.40 and 7,538.28

Step by Step Solution

1. Step 1: Write the proportion equation
   12,573.24 : 17,351.40 = 7,538.28 : x
2. Step 2: Convert to fraction form
   12,573.24/17,351.40 = 7,538.28/x
3. Step 3: Cross multiply
   12,573.24x = 17,351.40 × 7,538.28
4. Step 4: Simplify right side
   12,573.24x = 130,799,711.59
5. Step 5: Solve for x
   x = 130,799,711.59/12,573.24
6. Step 6: Final answer
   x = 10,403.02