Finding the Fourth Proportional to 4,146.64, 6,209.86 and 3,105.52

Step by Step Solution

1. Step 1: Write the proportion equation
   4,146.64 : 6,209.86 = 3,105.52 : x
2. Step 2: Convert to fraction form
   4,146.64/6,209.86 = 3,105.52/x
3. Step 3: Cross multiply
   4,146.64x = 6,209.86 × 3,105.52
4. Step 4: Simplify right side
   4,146.64x = 19,284,844.43
5. Step 5: Solve for x
   x = 19,284,844.43/4,146.64
6. Step 6: Final answer
   x = 4,650.72