Finding the Fourth Proportional to 3,418.30, 5,123.69 and 3,141.51

Step by Step Solution

1. Step 1: Write the proportion equation
   3,418.30 : 5,123.69 = 3,141.51 : x
2. Step 2: Convert to fraction form
   3,418.30/5,123.69 = 3,141.51/x
3. Step 3: Cross multiply
   3,418.30x = 5,123.69 × 3,141.51
4. Step 4: Simplify right side
   3,418.30x = 16,096,123.37
5. Step 5: Solve for x
   x = 16,096,123.37/3,418.30
6. Step 6: Final answer
   x = 4,708.81