Finding the Fourth Proportional to 41,910.47, 57,789.20 and 30,559.94

Step by Step Solution

1. Step 1: Write the proportion equation
   41,910.47 : 57,789.20 = 30,559.94 : x
2. Step 2: Convert to fraction form
   41,910.47/57,789.20 = 30,559.94/x
3. Step 3: Cross multiply
   41,910.47x = 57,789.20 × 30,559.94
4. Step 4: Simplify right side
   41,910.47x = 1,766,034,272.10
5. Step 5: Solve for x
   x = 1,766,034,272.10/41,910.47
6. Step 6: Final answer
   x = 42,138.26