Finding the Fourth Proportional to 16,999.59, 25,499.69 and 5,906.64

Step by Step Solution

1. Step 1: Write the proportion equation
   16,999.59 : 25,499.69 = 5,906.64 : x
2. Step 2: Convert to fraction form
   16,999.59/25,499.69 = 5,906.64/x
3. Step 3: Cross multiply
   16,999.59x = 25,499.69 × 5,906.64
4. Step 4: Simplify right side
   16,999.59x = 150,617,488.94
5. Step 5: Solve for x
   x = 150,617,488.94/16,999.59
6. Step 6: Final answer
   x = 8,860.07