Finding the Fourth Proportional to 10,686.21, 16,030.83 and 3,291.27

Step by Step Solution

1. Step 1: Write the proportion equation
   10,686.21 : 16,030.83 = 3,291.27 : x
2. Step 2: Convert to fraction form
   10,686.21/16,030.83 = 3,291.27/x
3. Step 3: Cross multiply
   10,686.21x = 16,030.83 × 3,291.27
4. Step 4: Simplify right side
   10,686.21x = 52,761,789.85
5. Step 5: Solve for x
   x = 52,761,789.85/10,686.21
6. Step 6: Final answer
   x = 4,937.37