Finding the Fourth Proportional to 21,096.75, 29,113.86 and 11,665.32

Step by Step Solution

1. Step 1: Write the proportion equation
   21,096.75 : 29,113.86 = 11,665.32 : x
2. Step 2: Convert to fraction form
   21,096.75/29,113.86 = 11,665.32/x
3. Step 3: Cross multiply
   21,096.75x = 29,113.86 × 11,665.32
4. Step 4: Simplify right side
   21,096.75x = 339,622,493.34
5. Step 5: Solve for x
   x = 339,622,493.34/21,096.75
6. Step 6: Final answer
   x = 16,098.33