Finding the Fourth Proportional to 21,983, 30,377.94 and 16,667.96

Step by Step Solution

1. Step 1: Write the proportion equation
   21,983 : 30,377.94 = 16,667.96 : x
2. Step 2: Convert to fraction form
   21,983/30,377.94 = 16,667.96/x
3. Step 3: Cross multiply
   21,983x = 30,377.94 × 16,667.96
4. Step 4: Simplify right side
   21,983x = 506,338,288.80
5. Step 5: Solve for x
   x = 506,338,288.80/21,983
6. Step 6: Final answer
   x = 23,033.18