Finding the Fourth Proportional to 10,028.43, 15,057.23 and 7,404.03

Step by Step Solution

1. Step 1: Write the proportion equation
   10,028.43 : 15,057.23 = 7,404.03 : x
2. Step 2: Convert to fraction form
   10,028.43/15,057.23 = 7,404.03/x
3. Step 3: Cross multiply
   10,028.43x = 15,057.23 × 7,404.03
4. Step 4: Simplify right side
   10,028.43x = 111,484,145.62
5. Step 5: Solve for x
   x = 111,484,145.62/10,028.43
6. Step 6: Final answer
   x = 11,116.81