Finding the Fourth Proportional to 9,441.76, 14,162.24 and 2,421.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,441.76 : 14,162.24 = 2,421.72 : x
2. Step 2: Convert to fraction form
   9,441.76/14,162.24 = 2,421.72/x
3. Step 3: Cross multiply
   9,441.76x = 14,162.24 × 2,421.72
4. Step 4: Simplify right side
   9,441.76x = 34,296,979.85
5. Step 5: Solve for x
   x = 34,296,979.85/9,441.76
6. Step 6: Final answer
   x = 3,632.48