Finding the Fourth Proportional to 4,947.78, 7,411.54 and 3,305.10

Step by Step Solution

1. Step 1: Write the proportion equation
   4,947.78 : 7,411.54 = 3,305.10 : x
2. Step 2: Convert to fraction form
   4,947.78/7,411.54 = 3,305.10/x
3. Step 3: Cross multiply
   4,947.78x = 7,411.54 × 3,305.10
4. Step 4: Simplify right side
   4,947.78x = 24,495,880.85
5. Step 5: Solve for x
   x = 24,495,880.85/4,947.78
6. Step 6: Final answer
   x = 4,950.88