Finding the Fourth Proportional to 9,538.72, 13,163.42 and 5,812.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,538.72 : 13,163.42 = 5,812.72 : x
2. Step 2: Convert to fraction form
   9,538.72/13,163.42 = 5,812.72/x
3. Step 3: Cross multiply
   9,538.72x = 13,163.42 × 5,812.72
4. Step 4: Simplify right side
   9,538.72x = 76,515,274.70
5. Step 5: Solve for x
   x = 76,515,274.70/9,538.72
6. Step 6: Final answer
   x = 8,021.55