Finding the Fourth Proportional to 9,223.72, 12,728.70 and 5,031.96

Step by Step Solution

1. Step 1: Write the proportion equation
   9,223.72 : 12,728.70 = 5,031.96 : x
2. Step 2: Convert to fraction form
   9,223.72/12,728.70 = 5,031.96/x
3. Step 3: Cross multiply
   9,223.72x = 12,728.70 × 5,031.96
4. Step 4: Simplify right side
   9,223.72x = 64,050,309.25
5. Step 5: Solve for x
   x = 64,050,309.25/9,223.72
6. Step 6: Final answer
   x = 6,944.09