Finding the Fourth Proportional to 9,644.43, 13,304.70 and 5,611.23

Step by Step Solution

1. Step 1: Write the proportion equation
   9,644.43 : 13,304.70 = 5,611.23 : x
2. Step 2: Convert to fraction form
   9,644.43/13,304.70 = 5,611.23/x
3. Step 3: Cross multiply
   9,644.43x = 13,304.70 × 5,611.23
4. Step 4: Simplify right side
   9,644.43x = 74,655,731.78
5. Step 5: Solve for x
   x = 74,655,731.78/9,644.43
6. Step 6: Final answer
   x = 7,740.81