Finding the Fourth Proportional to 10,785.69, 16,182.40 and 4,216.59

Step by Step Solution

1. Step 1: Write the proportion equation
   10,785.69 : 16,182.40 = 4,216.59 : x
2. Step 2: Convert to fraction form
   10,785.69/16,182.40 = 4,216.59/x
3. Step 3: Cross multiply
   10,785.69x = 16,182.40 × 4,216.59
4. Step 4: Simplify right side
   10,785.69x = 68,234,454.56
5. Step 5: Solve for x
   x = 68,234,454.56/10,785.69
6. Step 6: Final answer
   x = 6,326.39