Finding the Fourth Proportional to 11,399.24, 15,730.66 and 7,412.83

Step by Step Solution

1. Step 1: Write the proportion equation
   11,399.24 : 15,730.66 = 7,412.83 : x
2. Step 2: Convert to fraction form
   11,399.24/15,730.66 = 7,412.83/x
3. Step 3: Cross multiply
   11,399.24x = 15,730.66 × 7,412.83
4. Step 4: Simplify right side
   11,399.24x = 116,608,708.37
5. Step 5: Solve for x
   x = 116,608,708.37/11,399.24
6. Step 6: Final answer
   x = 10,229.52