Finding the Fourth Proportional to 7,650.96, 10,557.72 and 4,667.28

Step by Step Solution

1. Step 1: Write the proportion equation
   7,650.96 : 10,557.72 = 4,667.28 : x
2. Step 2: Convert to fraction form
   7,650.96/10,557.72 = 4,667.28/x
3. Step 3: Cross multiply
   7,650.96x = 10,557.72 × 4,667.28
4. Step 4: Simplify right side
   7,650.96x = 49,275,835.40
5. Step 5: Solve for x
   x = 49,275,835.40/7,650.96
6. Step 6: Final answer
   x = 6,440.48