Finding the Fourth Proportional to 7,050.24, 9,729.72 and 3,906.36

Step by Step Solution

1. Step 1: Write the proportion equation
   7,050.24 : 9,729.72 = 3,906.36 : x
2. Step 2: Convert to fraction form
   7,050.24/9,729.72 = 3,906.36/x
3. Step 3: Cross multiply
   7,050.24x = 9,729.72 × 3,906.36
4. Step 4: Simplify right side
   7,050.24x = 38,007,789.02
5. Step 5: Solve for x
   x = 38,007,789.02/7,050.24
6. Step 6: Final answer
   x = 5,390.99