Finding the Fourth Proportional to 9,660.45, 13,331.75 and 5,411.46

Step by Step Solution

1. Step 1: Write the proportion equation
   9,660.45 : 13,331.75 = 5,411.46 : x
2. Step 2: Convert to fraction form
   9,660.45/13,331.75 = 5,411.46/x
3. Step 3: Cross multiply
   9,660.45x = 13,331.75 × 5,411.46
4. Step 4: Simplify right side
   9,660.45x = 72,144,231.86
5. Step 5: Solve for x
   x = 72,144,231.86/9,660.45
6. Step 6: Final answer
   x = 7,468.00