Finding the Fourth Proportional to 6,330.78, 8,736.06 and 3,498.18

Step by Step Solution

1. Step 1: Write the proportion equation
   6,330.78 : 8,736.06 = 3,498.18 : x
2. Step 2: Convert to fraction form
   6,330.78/8,736.06 = 3,498.18/x
3. Step 3: Cross multiply
   6,330.78x = 8,736.06 × 3,498.18
4. Step 4: Simplify right side
   6,330.78x = 30,560,310.37
5. Step 5: Solve for x
   x = 30,560,310.37/6,330.78
6. Step 6: Final answer
   x = 4,827.26