Finding the Fourth Proportional to 41,729.58, 57,642.03 and 31,100.76

Step by Step Solution

1. Step 1: Write the proportion equation
   41,729.58 : 57,642.03 = 31,100.76 : x
2. Step 2: Convert to fraction form
   41,729.58/57,642.03 = 31,100.76/x
3. Step 3: Cross multiply
   41,729.58x = 57,642.03 × 31,100.76
4. Step 4: Simplify right side
   41,729.58x = 1,792,710,940.94
5. Step 5: Solve for x
   x = 1,792,710,940.94/41,729.58
6. Step 6: Final answer
   x = 42,960.20