Finding the Fourth Proportional to 8,538.56, 12,807.78 and 2,382.56

Step by Step Solution

1. Step 1: Write the proportion equation
   8,538.56 : 12,807.78 = 2,382.56 : x
2. Step 2: Convert to fraction form
   8,538.56/12,807.78 = 2,382.56/x
3. Step 3: Cross multiply
   8,538.56x = 12,807.78 × 2,382.56
4. Step 4: Simplify right side
   8,538.56x = 30,515,304.32
5. Step 5: Solve for x
   x = 30,515,304.32/8,538.56
6. Step 6: Final answer
   x = 3,573.82