Finding the Fourth Proportional to 20,155.21, 30,233.50 and 7,673.37

Step by Step Solution

1. Step 1: Write the proportion equation
   20,155.21 : 30,233.50 = 7,673.37 : x
2. Step 2: Convert to fraction form
   20,155.21/30,233.50 = 7,673.37/x
3. Step 3: Cross multiply
   20,155.21x = 30,233.50 × 7,673.37
4. Step 4: Simplify right side
   20,155.21x = 231,992,742.50
5. Step 5: Solve for x
   x = 231,992,742.50/20,155.21
6. Step 6: Final answer
   x = 11,510.31