Finding the Fourth Proportional to 14,738.78, 22,078.56 and 7,320.80

Step by Step Solution

1. Step 1: Write the proportion equation
   14,738.78 : 22,078.56 = 7,320.80 : x
2. Step 2: Convert to fraction form
   14,738.78/22,078.56 = 7,320.80/x
3. Step 3: Cross multiply
   14,738.78x = 22,078.56 × 7,320.80
4. Step 4: Simplify right side
   14,738.78x = 161,632,722.05
5. Step 5: Solve for x
   x = 161,632,722.05/14,738.78
6. Step 6: Final answer
   x = 10,966.49