Finding the Fourth Proportional to 11,553.32, 15,936.24 and 7,574.69

Step by Step Solution

1. Step 1: Write the proportion equation
   11,553.32 : 15,936.24 = 7,574.69 : x
2. Step 2: Convert to fraction form
   11,553.32/15,936.24 = 7,574.69/x
3. Step 3: Cross multiply
   11,553.32x = 15,936.24 × 7,574.69
4. Step 4: Simplify right side
   11,553.32x = 120,711,960.21
5. Step 5: Solve for x
   x = 120,711,960.21/11,553.32
6. Step 6: Final answer
   x = 10,448.25