Finding the Fourth Proportional to 39,919.55, 55,086.47 and 22,911.83

Step by Step Solution

1. Step 1: Write the proportion equation
   39,919.55 : 55,086.47 = 22,911.83 : x
2. Step 2: Convert to fraction form
   39,919.55/55,086.47 = 22,911.83/x
3. Step 3: Cross multiply
   39,919.55x = 55,086.47 × 22,911.83
4. Step 4: Simplify right side
   39,919.55x = 1,262,131,738.44
5. Step 5: Solve for x
   x = 1,262,131,738.44/39,919.55
6. Step 6: Final answer
   x = 31,616.88