Finding the Fourth Proportional to 10,685.35, 16,027.57 and 3,290.56

Step by Step Solution

1. Step 1: Write the proportion equation
   10,685.35 : 16,027.57 = 3,290.56 : x
2. Step 2: Convert to fraction form
   10,685.35/16,027.57 = 3,290.56/x
3. Step 3: Cross multiply
   10,685.35x = 16,027.57 × 3,290.56
4. Step 4: Simplify right side
   10,685.35x = 52,739,644.78
5. Step 5: Solve for x
   x = 52,739,644.78/10,685.35
6. Step 6: Final answer
   x = 4,935.70