Finding the Fourth Proportional to 16,176.33, 24,268.52 and 12,857.10

Step by Step Solution

1. Step 1: Write the proportion equation
   16,176.33 : 24,268.52 = 12,857.10 : x
2. Step 2: Convert to fraction form
   16,176.33/24,268.52 = 12,857.10/x
3. Step 3: Cross multiply
   16,176.33x = 24,268.52 × 12,857.10
4. Step 4: Simplify right side
   16,176.33x = 312,022,702.81
5. Step 5: Solve for x
   x = 312,022,702.81/16,176.33
6. Step 6: Final answer
   x = 19,288.85