Finding the Fourth Proportional to 8,797.78, 12,140.81 and 5,023.15

Step by Step Solution

1. Step 1: Write the proportion equation
   8,797.78 : 12,140.81 = 5,023.15 : x
2. Step 2: Convert to fraction form
   8,797.78/12,140.81 = 5,023.15/x
3. Step 3: Cross multiply
   8,797.78x = 12,140.81 × 5,023.15
4. Step 4: Simplify right side
   8,797.78x = 60,985,138.47
5. Step 5: Solve for x
   x = 60,985,138.47/8,797.78
6. Step 6: Final answer
   x = 6,931.88