Finding the Fourth Proportional to 4,449.15, 6,141.11 and 3,123.18

Step by Step Solution

1. Step 1: Write the proportion equation
   4,449.15 : 6,141.11 = 3,123.18 : x
2. Step 2: Convert to fraction form
   4,449.15/6,141.11 = 3,123.18/x
3. Step 3: Cross multiply
   4,449.15x = 6,141.11 × 3,123.18
4. Step 4: Simplify right side
   4,449.15x = 19,179,776.31
5. Step 5: Solve for x
   x = 19,179,776.31/4,449.15
6. Step 6: Final answer
   x = 4,310.89