Finding the Fourth Proportional to 8,427.69, 12,648.42 and 5,964.90

Step by Step Solution

1. Step 1: Write the proportion equation
   8,427.69 : 12,648.42 = 5,964.90 : x
2. Step 2: Convert to fraction form
   8,427.69/12,648.42 = 5,964.90/x
3. Step 3: Cross multiply
   8,427.69x = 12,648.42 × 5,964.90
4. Step 4: Simplify right side
   8,427.69x = 75,446,560.46
5. Step 5: Solve for x
   x = 75,446,560.46/8,427.69
6. Step 6: Final answer
   x = 8,952.22