Finding the Fourth Proportional to 9,544.64, 13,172.83 and 5,353.70

Step by Step Solution

1. Step 1: Write the proportion equation
   9,544.64 : 13,172.83 = 5,353.70 : x
2. Step 2: Convert to fraction form
   9,544.64/13,172.83 = 5,353.70/x
3. Step 3: Cross multiply
   9,544.64x = 13,172.83 × 5,353.70
4. Step 4: Simplify right side
   9,544.64x = 70,523,300.72
5. Step 5: Solve for x
   x = 70,523,300.72/9,544.64
6. Step 6: Final answer
   x = 7,388.79