Finding the Fourth Proportional to 6,447.57, 9,673.25 and 3,160.86

Step by Step Solution

1. Step 1: Write the proportion equation
   6,447.57 : 9,673.25 = 3,160.86 : x
2. Step 2: Convert to fraction form
   6,447.57/9,673.25 = 3,160.86/x
3. Step 3: Cross multiply
   6,447.57x = 9,673.25 × 3,160.86
4. Step 4: Simplify right side
   6,447.57x = 30,575,773.19
5. Step 5: Solve for x
   x = 30,575,773.19/6,447.57
6. Step 6: Final answer
   x = 4,742.22