Finding the Fourth Proportional to 8,778.14, 12,113.82 and 5,243.42

Step by Step Solution

1. Step 1: Write the proportion equation
   8,778.14 : 12,113.82 = 5,243.42 : x
2. Step 2: Convert to fraction form
   8,778.14/12,113.82 = 5,243.42/x
3. Step 3: Cross multiply
   8,778.14x = 12,113.82 × 5,243.42
4. Step 4: Simplify right side
   8,778.14x = 63,517,846.06
5. Step 5: Solve for x
   x = 63,517,846.06/8,778.14
6. Step 6: Final answer
   x = 7,235.91