Finding the Fourth Proportional to 22,021.52, 33,045.37 and 7,980.17

Step by Step Solution

1. Step 1: Write the proportion equation
   22,021.52 : 33,045.37 = 7,980.17 : x
2. Step 2: Convert to fraction form
   22,021.52/33,045.37 = 7,980.17/x
3. Step 3: Cross multiply
   22,021.52x = 33,045.37 × 7,980.17
4. Step 4: Simplify right side
   22,021.52x = 263,707,485.14
5. Step 5: Solve for x
   x = 263,707,485.14/22,021.52
6. Step 6: Final answer
   x = 11,974.99