Finding the Fourth Proportional to 9,768.56, 14,647.32 and 3,847.28

Step by Step Solution

1. Step 1: Write the proportion equation
   9,768.56 : 14,647.32 = 3,847.28 : x
2. Step 2: Convert to fraction form
   9,768.56/14,647.32 = 3,847.28/x
3. Step 3: Cross multiply
   9,768.56x = 14,647.32 × 3,847.28
4. Step 4: Simplify right side
   9,768.56x = 56,352,341.29
5. Step 5: Solve for x
   x = 56,352,341.29/9,768.56
6. Step 6: Final answer
   x = 5,768.75