Finding the Fourth Proportional to 9,270.28, 12,792.72 and 5,078.44

Step by Step Solution

1. Step 1: Write the proportion equation
   9,270.28 : 12,792.72 = 5,078.44 : x
2. Step 2: Convert to fraction form
   9,270.28/12,792.72 = 5,078.44/x
3. Step 3: Cross multiply
   9,270.28x = 12,792.72 × 5,078.44
4. Step 4: Simplify right side
   9,270.28x = 64,967,060.96
5. Step 5: Solve for x
   x = 64,967,060.96/9,270.28
6. Step 6: Final answer
   x = 7,008.10