Finding the Fourth Proportional to 9,422.70, 14,128.50 and 3,579.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,422.70 : 14,128.50 = 3,579.72 : x
2. Step 2: Convert to fraction form
   9,422.70/14,128.50 = 3,579.72/x
3. Step 3: Cross multiply
   9,422.70x = 14,128.50 × 3,579.72
4. Step 4: Simplify right side
   9,422.70x = 50,576,074.02
5. Step 5: Solve for x
   x = 50,576,074.02/9,422.70
6. Step 6: Final answer
   x = 5,367.47