Finding the Fourth Proportional to 9,650.48, 13,305.30 and 7,657.62

Step by Step Solution

1. Step 1: Write the proportion equation
   9,650.48 : 13,305.30 = 7,657.62 : x
2. Step 2: Convert to fraction form
   9,650.48/13,305.30 = 7,657.62/x
3. Step 3: Cross multiply
   9,650.48x = 13,305.30 × 7,657.62
4. Step 4: Simplify right side
   9,650.48x = 101,886,931.39
5. Step 5: Solve for x
   x = 101,886,931.39/9,650.48
6. Step 6: Final answer
   x = 10,557.71