Finding the Fourth Proportional to 11,372.42, 17,049.50 and 7,628.09

Step by Step Solution

1. Step 1: Write the proportion equation
   11,372.42 : 17,049.50 = 7,628.09 : x
2. Step 2: Convert to fraction form
   11,372.42/17,049.50 = 7,628.09/x
3. Step 3: Cross multiply
   11,372.42x = 17,049.50 × 7,628.09
4. Step 4: Simplify right side
   11,372.42x = 130,055,164.48
5. Step 5: Solve for x
   x = 130,055,164.48/11,372.42
6. Step 6: Final answer
   x = 11,436.02