Finding the Fourth Proportional to 6,212.90, 8,573.98 and 3,380.46

Step by Step Solution

1. Step 1: Write the proportion equation
   6,212.90 : 8,573.98 = 3,380.46 : x
2. Step 2: Convert to fraction form
   6,212.90/8,573.98 = 3,380.46/x
3. Step 3: Cross multiply
   6,212.90x = 8,573.98 × 3,380.46
4. Step 4: Simplify right side
   6,212.90x = 28,983,996.43
5. Step 5: Solve for x
   x = 28,983,996.43/6,212.90
6. Step 6: Final answer
   x = 4,665.13