Finding the Fourth Proportional to 12,382.71, 18,574.00 and 3,022.78

Step by Step Solution

1. Step 1: Write the proportion equation
   12,382.71 : 18,574.00 = 3,022.78 : x
2. Step 2: Convert to fraction form
   12,382.71/18,574.00 = 3,022.78/x
3. Step 3: Cross multiply
   12,382.71x = 18,574.00 × 3,022.78
4. Step 4: Simplify right side
   12,382.71x = 56,145,093.31
5. Step 5: Solve for x
   x = 56,145,093.31/12,382.71
6. Step 6: Final answer
   x = 4,534.15