Finding the Fourth Proportional to 9,744.72, 13,447.88 and 5,553.04

Step by Step Solution

1. Step 1: Write the proportion equation
   9,744.72 : 13,447.88 = 5,553.04 : x
2. Step 2: Convert to fraction form
   9,744.72/13,447.88 = 5,553.04/x
3. Step 3: Cross multiply
   9,744.72x = 13,447.88 × 5,553.04
4. Step 4: Simplify right side
   9,744.72x = 74,676,615.56
5. Step 5: Solve for x
   x = 74,676,615.56/9,744.72
6. Step 6: Final answer
   x = 7,663.29