Finding the Fourth Proportional to 3,493.98, 5,244.06 and 3,123.18

Step by Step Solution

1. Step 1: Write the proportion equation
   3,493.98 : 5,244.06 = 3,123.18 : x
2. Step 2: Convert to fraction form
   3,493.98/5,244.06 = 3,123.18/x
3. Step 3: Cross multiply
   3,493.98x = 5,244.06 × 3,123.18
4. Step 4: Simplify right side
   3,493.98x = 16,378,143.31
5. Step 5: Solve for x
   x = 16,378,143.31/3,493.98
6. Step 6: Final answer
   x = 4,687.53