Finding the Fourth Proportional to 9,464.56, 13,059.96 and 5,431.18

Step by Step Solution

1. Step 1: Write the proportion equation
   9,464.56 : 13,059.96 = 5,431.18 : x
2. Step 2: Convert to fraction form
   9,464.56/13,059.96 = 5,431.18/x
3. Step 3: Cross multiply
   9,464.56x = 13,059.96 × 5,431.18
4. Step 4: Simplify right side
   9,464.56x = 70,930,993.55
5. Step 5: Solve for x
   x = 70,930,993.55/9,464.56
6. Step 6: Final answer
   x = 7,494.38