Finding the Fourth Proportional to 40,673.86, 56,128.89 and 22,768

Step by Step Solution

1. Step 1: Write the proportion equation
   40,673.86 : 56,128.89 = 22,768 : x
2. Step 2: Convert to fraction form
   40,673.86/56,128.89 = 22,768/x
3. Step 3: Cross multiply
   40,673.86x = 56,128.89 × 22,768
4. Step 4: Simplify right side
   40,673.86x = 1,277,942,567.52
5. Step 5: Solve for x
   x = 1,277,942,567.52/40,673.86
6. Step 6: Final answer
   x = 31,419.26