Finding the Fourth Proportional to 10,686.52, 16,031.61 and 3,290.84

Step by Step Solution

1. Step 1: Write the proportion equation
   10,686.52 : 16,031.61 = 3,290.84 : x
2. Step 2: Convert to fraction form
   10,686.52/16,031.61 = 3,290.84/x
3. Step 3: Cross multiply
   10,686.52x = 16,031.61 × 3,290.84
4. Step 4: Simplify right side
   10,686.52x = 52,757,463.45
5. Step 5: Solve for x
   x = 52,757,463.45/10,686.52
6. Step 6: Final answer
   x = 4,936.82