Finding the Fourth Proportional to 7,050.58, 9,729.78 and 3,906.76

Step by Step Solution

1. Step 1: Write the proportion equation
   7,050.58 : 9,729.78 = 3,906.76 : x
2. Step 2: Convert to fraction form
   7,050.58/9,729.78 = 3,906.76/x
3. Step 3: Cross multiply
   7,050.58x = 9,729.78 × 3,906.76
4. Step 4: Simplify right side
   7,050.58x = 38,011,915.31
5. Step 5: Solve for x
   x = 38,011,915.31/7,050.58
6. Step 6: Final answer
   x = 5,391.32