Finding the Fourth Proportional to 22,002.65, 33,007.42 and 7,961.20

Step by Step Solution

1. Step 1: Write the proportion equation
   22,002.65 : 33,007.42 = 7,961.20 : x
2. Step 2: Convert to fraction form
   22,002.65/33,007.42 = 7,961.20/x
3. Step 3: Cross multiply
   22,002.65x = 33,007.42 × 7,961.20
4. Step 4: Simplify right side
   22,002.65x = 262,778,599.54
5. Step 5: Solve for x
   x = 262,778,599.54/22,002.65
6. Step 6: Final answer
   x = 11,943.04