Finding the Fourth Proportional to 9,288.17, 12,818.15 and 5,928.29

Step by Step Solution

1. Step 1: Write the proportion equation
   9,288.17 : 12,818.15 = 5,928.29 : x
2. Step 2: Convert to fraction form
   9,288.17/12,818.15 = 5,928.29/x
3. Step 3: Cross multiply
   9,288.17x = 12,818.15 × 5,928.29
4. Step 4: Simplify right side
   9,288.17x = 75,989,616.73
5. Step 5: Solve for x
   x = 75,989,616.73/9,288.17
6. Step 6: Final answer
   x = 8,181.34