Finding the Fourth Proportional to 9,429.28, 14,147.70 and 3,885.37

Step by Step Solution

1. Step 1: Write the proportion equation
   9,429.28 : 14,147.70 = 3,885.37 : x
2. Step 2: Convert to fraction form
   9,429.28/14,147.70 = 3,885.37/x
3. Step 3: Cross multiply
   9,429.28x = 14,147.70 × 3,885.37
4. Step 4: Simplify right side
   9,429.28x = 54,969,049.15
5. Step 5: Solve for x
   x = 54,969,049.15/9,429.28
6. Step 6: Final answer
   x = 5,829.61