Finding the Fourth Proportional to 21,897, 32,850.68 and 7,105.89

Step by Step Solution

1. Step 1: Write the proportion equation
   21,897 : 32,850.68 = 7,105.89 : x
2. Step 2: Convert to fraction form
   21,897/32,850.68 = 7,105.89/x
3. Step 3: Cross multiply
   21,897x = 32,850.68 × 7,105.89
4. Step 4: Simplify right side
   21,897x = 233,433,282.98
5. Step 5: Solve for x
   x = 233,433,282.98/21,897
6. Step 6: Final answer
   x = 10,660.51