Finding the Fourth Proportional to 41,288.42, 56,978.32 and 22,425.55

Step by Step Solution

1. Step 1: Write the proportion equation
   41,288.42 : 56,978.32 = 22,425.55 : x
2. Step 2: Convert to fraction form
   41,288.42/56,978.32 = 22,425.55/x
3. Step 3: Cross multiply
   41,288.42x = 56,978.32 × 22,425.55
4. Step 4: Simplify right side
   41,288.42x = 1,277,770,164.08
5. Step 5: Solve for x
   x = 1,277,770,164.08/41,288.42
6. Step 6: Final answer
   x = 30,947.42