Finding the Fourth Proportional to 20,153.78, 30,233.31 and 7,007.14

Step by Step Solution

1. Step 1: Write the proportion equation
   20,153.78 : 30,233.31 = 7,007.14 : x
2. Step 2: Convert to fraction form
   20,153.78/30,233.31 = 7,007.14/x
3. Step 3: Cross multiply
   20,153.78x = 30,233.31 × 7,007.14
4. Step 4: Simplify right side
   20,153.78x = 211,849,035.83
5. Step 5: Solve for x
   x = 211,849,035.83/20,153.78
6. Step 6: Final answer
   x = 10,511.63