Finding the Fourth Proportional to 20,823.66, 31,196.61 and 16,196.94

Step by Step Solution

1. Step 1: Write the proportion equation
   20,823.66 : 31,196.61 = 16,196.94 : x
2. Step 2: Convert to fraction form
   20,823.66/31,196.61 = 16,196.94/x
3. Step 3: Cross multiply
   20,823.66x = 31,196.61 × 16,196.94
4. Step 4: Simplify right side
   20,823.66x = 505,289,620.37
5. Step 5: Solve for x
   x = 505,289,620.37/20,823.66
6. Step 6: Final answer
   x = 24,265.17