Finding the Fourth Proportional to 40,105.50, 55,346.89 and 23,108.42

Step by Step Solution

1. Step 1: Write the proportion equation
   40,105.50 : 55,346.89 = 23,108.42 : x
2. Step 2: Convert to fraction form
   40,105.50/55,346.89 = 23,108.42/x
3. Step 3: Cross multiply
   40,105.50x = 55,346.89 × 23,108.42
4. Step 4: Simplify right side
   40,105.50x = 1,278,979,122.04
5. Step 5: Solve for x
   x = 1,278,979,122.04/40,105.50
6. Step 6: Final answer
   x = 31,890.37