Finding the Fourth Proportional to 6,604.96, 9,114.78 and 3,916.30

Step by Step Solution

1. Step 1: Write the proportion equation
   6,604.96 : 9,114.78 = 3,916.30 : x
2. Step 2: Convert to fraction form
   6,604.96/9,114.78 = 3,916.30/x
3. Step 3: Cross multiply
   6,604.96x = 9,114.78 × 3,916.30
4. Step 4: Simplify right side
   6,604.96x = 35,696,212.91
5. Step 5: Solve for x
   x = 35,696,212.91/6,604.96
6. Step 6: Final answer
   x = 5,404.46