Finding the Fourth Proportional to 8,118.46, 12,168.78 and 5,303.82

Step by Step Solution

1. Step 1: Write the proportion equation
   8,118.46 : 12,168.78 = 5,303.82 : x
2. Step 2: Convert to fraction form
   8,118.46/12,168.78 = 5,303.82/x
3. Step 3: Cross multiply
   8,118.46x = 12,168.78 × 5,303.82
4. Step 4: Simplify right side
   8,118.46x = 64,541,018.74
5. Step 5: Solve for x
   x = 64,541,018.74/8,118.46
6. Step 6: Final answer
   x = 7,949.91