Finding the Fourth Proportional to 9,544.79, 13,171.78 and 5,353.13

Step by Step Solution

1. Step 1: Write the proportion equation
   9,544.79 : 13,171.78 = 5,353.13 : x
2. Step 2: Convert to fraction form
   9,544.79/13,171.78 = 5,353.13/x
3. Step 3: Cross multiply
   9,544.79x = 13,171.78 × 5,353.13
4. Step 4: Simplify right side
   9,544.79x = 70,510,250.67
5. Step 5: Solve for x
   x = 70,510,250.67/9,544.79
6. Step 6: Final answer
   x = 7,387.30