Finding the Fourth Proportional to 16,826, 23,198.31 and 13,789.94

Step by Step Solution

1. Step 1: Write the proportion equation
   16,826 : 23,198.31 = 13,789.94 : x
2. Step 2: Convert to fraction form
   16,826/23,198.31 = 13,789.94/x
3. Step 3: Cross multiply
   16,826x = 23,198.31 × 13,789.94
4. Step 4: Simplify right side
   16,826x = 319,903,303.00
5. Step 5: Solve for x
   x = 319,903,303.00/16,826
6. Step 6: Final answer
   x = 19,012.44