Finding the Fourth Proportional to 10,780.20, 16,164.54 and 3,382.74

Step by Step Solution

1. Step 1: Write the proportion equation
   10,780.20 : 16,164.54 = 3,382.74 : x
2. Step 2: Convert to fraction form
   10,780.20/16,164.54 = 3,382.74/x
3. Step 3: Cross multiply
   10,780.20x = 16,164.54 × 3,382.74
4. Step 4: Simplify right side
   10,780.20x = 54,680,436.04
5. Step 5: Solve for x
   x = 54,680,436.04/10,780.20
6. Step 6: Final answer
   x = 5,072.30