Finding the Fourth Proportional to 6,818.16, 10,212.84 and 3,123.48

Step by Step Solution

1. Step 1: Write the proportion equation
   6,818.16 : 10,212.84 = 3,123.48 : x
2. Step 2: Convert to fraction form
   6,818.16/10,212.84 = 3,123.48/x
3. Step 3: Cross multiply
   6,818.16x = 10,212.84 × 3,123.48
4. Step 4: Simplify right side
   6,818.16x = 31,899,601.48
5. Step 5: Solve for x
   x = 31,899,601.48/6,818.16
6. Step 6: Final answer
   x = 4,678.62