Finding the Fourth Proportional to 9,768.15, 14,650.38 and 4,765.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,768.15 : 14,650.38 = 4,765.50 : x
2. Step 2: Convert to fraction form
   9,768.15/14,650.38 = 4,765.50/x
3. Step 3: Cross multiply
   9,768.15x = 14,650.38 × 4,765.50
4. Step 4: Simplify right side
   9,768.15x = 69,816,385.89
5. Step 5: Solve for x
   x = 69,816,385.89/9,768.15
6. Step 6: Final answer
   x = 7,147.35