Finding the Fourth Proportional to 11,640.60, 17,465.52 and 4,245.54

Step by Step Solution

1. Step 1: Write the proportion equation
   11,640.60 : 17,465.52 = 4,245.54 : x
2. Step 2: Convert to fraction form
   11,640.60/17,465.52 = 4,245.54/x
3. Step 3: Cross multiply
   11,640.60x = 17,465.52 × 4,245.54
4. Step 4: Simplify right side
   11,640.60x = 74,150,563.78
5. Step 5: Solve for x
   x = 74,150,563.78/11,640.60
6. Step 6: Final answer
   x = 6,369.99