Finding the Fourth Proportional to 22,012.40, 33,022.20 and 7,219.52

Step by Step Solution

1. Step 1: Write the proportion equation
   22,012.40 : 33,022.20 = 7,219.52 : x
2. Step 2: Convert to fraction form
   22,012.40/33,022.20 = 7,219.52/x
3. Step 3: Cross multiply
   22,012.40x = 33,022.20 × 7,219.52
4. Step 4: Simplify right side
   22,012.40x = 238,404,433.34
5. Step 5: Solve for x
   x = 238,404,433.34/22,012.40
6. Step 6: Final answer
   x = 10,830.46