Finding the Fourth Proportional to 10,789.86, 16,186.68 and 4,464.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,789.86 : 16,186.68 = 4,464.72 : x
2. Step 2: Convert to fraction form
   10,789.86/16,186.68 = 4,464.72/x
3. Step 3: Cross multiply
   10,789.86x = 16,186.68 × 4,464.72
4. Step 4: Simplify right side
   10,789.86x = 72,268,993.93
5. Step 5: Solve for x
   x = 72,268,993.93/10,789.86
6. Step 6: Final answer
   x = 6,697.86