Finding the Fourth Proportional to 21,667.59, 29,901.29 and 11,731.59

Step by Step Solution

1. Step 1: Write the proportion equation
   21,667.59 : 29,901.29 = 11,731.59 : x
2. Step 2: Convert to fraction form
   21,667.59/29,901.29 = 11,731.59/x
3. Step 3: Cross multiply
   21,667.59x = 29,901.29 × 11,731.59
4. Step 4: Simplify right side
   21,667.59x = 350,789,616.09
5. Step 5: Solve for x
   x = 350,789,616.09/21,667.59
6. Step 6: Final answer
   x = 16,189.60