Finding the Fourth Proportional to 21,175.88, 31,756.83 and 7,132.42

Step by Step Solution

1. Step 1: Write the proportion equation
   21,175.88 : 31,756.83 = 7,132.42 : x
2. Step 2: Convert to fraction form
   21,175.88/31,756.83 = 7,132.42/x
3. Step 3: Cross multiply
   21,175.88x = 31,756.83 × 7,132.42
4. Step 4: Simplify right side
   21,175.88x = 226,503,049.43
5. Step 5: Solve for x
   x = 226,503,049.43/21,175.88
6. Step 6: Final answer
   x = 10,696.28