Finding the Fourth Proportional to 3,954.55, 5,446.16 and 3,868.43

Step by Step Solution

1. Step 1: Write the proportion equation
   3,954.55 : 5,446.16 = 3,868.43 : x
2. Step 2: Convert to fraction form
   3,954.55/5,446.16 = 3,868.43/x
3. Step 3: Cross multiply
   3,954.55x = 5,446.16 × 3,868.43
4. Step 4: Simplify right side
   3,954.55x = 21,068,088.73
5. Step 5: Solve for x
   x = 21,068,088.73/3,954.55
6. Step 6: Final answer
   x = 5,327.56