Finding the Fourth Proportional to 20,682.69, 31,022.41 and 7,538.01

Step by Step Solution

1. Step 1: Write the proportion equation
   20,682.69 : 31,022.41 = 7,538.01 : x
2. Step 2: Convert to fraction form
   20,682.69/31,022.41 = 7,538.01/x
3. Step 3: Cross multiply
   20,682.69x = 31,022.41 × 7,538.01
4. Step 4: Simplify right side
   20,682.69x = 233,847,236.80
5. Step 5: Solve for x
   x = 233,847,236.80/20,682.69
6. Step 6: Final answer
   x = 11,306.42