Finding the Fourth Proportional to 11,375.24, 15,698.34 and 7,399.72

Step by Step Solution

1. Step 1: Write the proportion equation
   11,375.24 : 15,698.34 = 7,399.72 : x
2. Step 2: Convert to fraction form
   11,375.24/15,698.34 = 7,399.72/x
3. Step 3: Cross multiply
   11,375.24x = 15,698.34 × 7,399.72
4. Step 4: Simplify right side
   11,375.24x = 116,163,320.46
5. Step 5: Solve for x
   x = 116,163,320.46/11,375.24
6. Step 6: Final answer
   x = 10,211.94