Finding the Fourth Proportional to 4,942.55, 7,419.53 and 3,906.02

Step by Step Solution

1. Step 1: Write the proportion equation
   4,942.55 : 7,419.53 = 3,906.02 : x
2. Step 2: Convert to fraction form
   4,942.55/7,419.53 = 3,906.02/x
3. Step 3: Cross multiply
   4,942.55x = 7,419.53 × 3,906.02
4. Step 4: Simplify right side
   4,942.55x = 28,980,860.88
5. Step 5: Solve for x
   x = 28,980,860.88/4,942.55
6. Step 6: Final answer
   x = 5,863.54