Finding the Fourth Proportional to 22,920.50, 31,632.24 and 13,233.08

Step by Step Solution

1. Step 1: Write the proportion equation
   22,920.50 : 31,632.24 = 13,233.08 : x
2. Step 2: Convert to fraction form
   22,920.50/31,632.24 = 13,233.08/x
3. Step 3: Cross multiply
   22,920.50x = 31,632.24 × 13,233.08
4. Step 4: Simplify right side
   22,920.50x = 418,591,804.34
5. Step 5: Solve for x
   x = 418,591,804.34/22,920.50
6. Step 6: Final answer
   x = 18,262.77