Finding the Fourth Proportional to 20,083.75, 30,144.15 and 10,230.37

Step by Step Solution

1. Step 1: Write the proportion equation
   20,083.75 : 30,144.15 = 10,230.37 : x
2. Step 2: Convert to fraction form
   20,083.75/30,144.15 = 10,230.37/x
3. Step 3: Cross multiply
   20,083.75x = 30,144.15 × 10,230.37
4. Step 4: Simplify right side
   20,083.75x = 308,385,732.48
5. Step 5: Solve for x
   x = 308,385,732.48/20,083.75
6. Step 6: Final answer
   x = 15,354.99