Finding the Fourth Proportional to 9,270.06, 12,792.74 and 5,078.31

Step by Step Solution

1. Step 1: Write the proportion equation
   9,270.06 : 12,792.74 = 5,078.31 : x
2. Step 2: Convert to fraction form
   9,270.06/12,792.74 = 5,078.31/x
3. Step 3: Cross multiply
   9,270.06x = 12,792.74 × 5,078.31
4. Step 4: Simplify right side
   9,270.06x = 64,965,499.47
5. Step 5: Solve for x
   x = 64,965,499.47/9,270.06
6. Step 6: Final answer
   x = 7,008.10