Finding the Fourth Proportional to 6,830.56, 10,238.56 and 3,902.72

Step by Step Solution

1. Step 1: Write the proportion equation
   6,830.56 : 10,238.56 = 3,902.72 : x
2. Step 2: Convert to fraction form
   6,830.56/10,238.56 = 3,902.72/x
3. Step 3: Cross multiply
   6,830.56x = 10,238.56 × 3,902.72
4. Step 4: Simplify right side
   6,830.56x = 39,958,232.88
5. Step 5: Solve for x
   x = 39,958,232.88/6,830.56
6. Step 6: Final answer
   x = 5,849.92