Finding the Fourth Proportional to 21,097.01, 29,112.94 and 11,665.37

Step by Step Solution

1. Step 1: Write the proportion equation
   21,097.01 : 29,112.94 = 11,665.37 : x
2. Step 2: Convert to fraction form
   21,097.01/29,112.94 = 11,665.37/x
3. Step 3: Cross multiply
   21,097.01x = 29,112.94 × 11,665.37
4. Step 4: Simplify right side
   21,097.01x = 339,613,216.89
5. Step 5: Solve for x
   x = 339,613,216.89/21,097.01
6. Step 6: Final answer
   x = 16,097.69