Finding the Fourth Proportional to 11,178.64, 16,770.55 and 3,280.83

Step by Step Solution

1. Step 1: Write the proportion equation
   11,178.64 : 16,770.55 = 3,280.83 : x
2. Step 2: Convert to fraction form
   11,178.64/16,770.55 = 3,280.83/x
3. Step 3: Cross multiply
   11,178.64x = 16,770.55 × 3,280.83
4. Step 4: Simplify right side
   11,178.64x = 55,021,323.56
5. Step 5: Solve for x
   x = 55,021,323.56/11,178.64
6. Step 6: Final answer
   x = 4,922.01