Finding the Fourth Proportional to 6,687.12, 9,227.83 and 3,702.78

Step by Step Solution

1. Step 1: Write the proportion equation
   6,687.12 : 9,227.83 = 3,702.78 : x
2. Step 2: Convert to fraction form
   6,687.12/9,227.83 = 3,702.78/x
3. Step 3: Cross multiply
   6,687.12x = 9,227.83 × 3,702.78
4. Step 4: Simplify right side
   6,687.12x = 34,168,624.37
5. Step 5: Solve for x
   x = 34,168,624.37/6,687.12
6. Step 6: Final answer
   x = 5,109.62