Finding the Fourth Proportional to 16,048.80, 24,081.30 and 7,278.12

Step by Step Solution

1. Step 1: Write the proportion equation
   16,048.80 : 24,081.30 = 7,278.12 : x
2. Step 2: Convert to fraction form
   16,048.80/24,081.30 = 7,278.12/x
3. Step 3: Cross multiply
   16,048.80x = 24,081.30 × 7,278.12
4. Step 4: Simplify right side
   16,048.80x = 175,266,591.16
5. Step 5: Solve for x
   x = 175,266,591.16/16,048.80
6. Step 6: Final answer
   x = 10,920.85