Finding the Fourth Proportional to 5,409.32, 7,464.69 and 3,171.15

Step by Step Solution

1. Step 1: Write the proportion equation
   5,409.32 : 7,464.69 = 3,171.15 : x
2. Step 2: Convert to fraction form
   5,409.32/7,464.69 = 3,171.15/x
3. Step 3: Cross multiply
   5,409.32x = 7,464.69 × 3,171.15
4. Step 4: Simplify right side
   5,409.32x = 23,671,651.69
5. Step 5: Solve for x
   x = 23,671,651.69/5,409.32
6. Step 6: Final answer
   x = 4,376.09