Finding the Fourth Proportional to 7,050.38, 9,729.72 and 3,906.77

Step by Step Solution

1. Step 1: Write the proportion equation
   7,050.38 : 9,729.72 = 3,906.77 : x
2. Step 2: Convert to fraction form
   7,050.38/9,729.72 = 3,906.77/x
3. Step 3: Cross multiply
   7,050.38x = 9,729.72 × 3,906.77
4. Step 4: Simplify right side
   7,050.38x = 38,011,729.56
5. Step 5: Solve for x
   x = 38,011,729.56/7,050.38
6. Step 6: Final answer
   x = 5,391.45