Finding the Fourth Proportional to 9,288.52, 12,818.18 and 5,309.73

Step by Step Solution

1. Step 1: Write the proportion equation
   9,288.52 : 12,818.18 = 5,309.73 : x
2. Step 2: Convert to fraction form
   9,288.52/12,818.18 = 5,309.73/x
3. Step 3: Cross multiply
   9,288.52x = 12,818.18 × 5,309.73
4. Step 4: Simplify right side
   9,288.52x = 68,061,074.89
5. Step 5: Solve for x
   x = 68,061,074.89/9,288.52
6. Step 6: Final answer
   x = 7,327.44