Finding the Fourth Proportional to 6,416.52, 9,618.55 and 3,127.82

Step by Step Solution

1. Step 1: Write the proportion equation
   6,416.52 : 9,618.55 = 3,127.82 : x
2. Step 2: Convert to fraction form
   6,416.52/9,618.55 = 3,127.82/x
3. Step 3: Cross multiply
   6,416.52x = 9,618.55 × 3,127.82
4. Step 4: Simplify right side
   6,416.52x = 30,085,037.15
5. Step 5: Solve for x
   x = 30,085,037.15/6,416.52
6. Step 6: Final answer
   x = 4,688.69