Finding the Fourth Proportional to 21,098.83, 29,116.03 and 11,667.39

Step by Step Solution

1. Step 1: Write the proportion equation
   21,098.83 : 29,116.03 = 11,667.39 : x
2. Step 2: Convert to fraction form
   21,098.83/29,116.03 = 11,667.39/x
3. Step 3: Cross multiply
   21,098.83x = 29,116.03 × 11,667.39
4. Step 4: Simplify right side
   21,098.83x = 339,708,157.38
5. Step 5: Solve for x
   x = 339,708,157.38/21,098.83
6. Step 6: Final answer
   x = 16,100.81