Finding the Fourth Proportional to 9,815.24, 14,722.94 and 3,579.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,815.24 : 14,722.94 = 3,579.72 : x
2. Step 2: Convert to fraction form
   9,815.24/14,722.94 = 3,579.72/x
3. Step 3: Cross multiply
   9,815.24x = 14,722.94 × 3,579.72
4. Step 4: Simplify right side
   9,815.24x = 52,704,002.78
5. Step 5: Solve for x
   x = 52,704,002.78/9,815.24
6. Step 6: Final answer
   x = 5,369.61