Finding the Fourth Proportional to 5,574.78, 8,362.56 and 2,112

Step by Step Solution

1. Step 1: Write the proportion equation
   5,574.78 : 8,362.56 = 2,112 : x
2. Step 2: Convert to fraction form
   5,574.78/8,362.56 = 2,112/x
3. Step 3: Cross multiply
   5,574.78x = 8,362.56 × 2,112
4. Step 4: Simplify right side
   5,574.78x = 17,661,726.72
5. Step 5: Solve for x
   x = 17,661,726.72/5,574.78
6. Step 6: Final answer
   x = 3,168.15