Finding the Fourth Proportional to 9,270.50, 12,793.16 and 5,078.76

Step by Step Solution

1. Step 1: Write the proportion equation
   9,270.50 : 12,793.16 = 5,078.76 : x
2. Step 2: Convert to fraction form
   9,270.50/12,793.16 = 5,078.76/x
3. Step 3: Cross multiply
   9,270.50x = 12,793.16 × 5,078.76
4. Step 4: Simplify right side
   9,270.50x = 64,973,389.28
5. Step 5: Solve for x
   x = 64,973,389.28/9,270.50
6. Step 6: Final answer
   x = 7,008.62