Finding the Fourth Proportional to 71,650.78, 98,870.22 and 41,431.54

Step by Step Solution

1. Step 1: Write the proportion equation
   71,650.78 : 98,870.22 = 41,431.54 : x
2. Step 2: Convert to fraction form
   71,650.78/98,870.22 = 41,431.54/x
3. Step 3: Cross multiply
   71,650.78x = 98,870.22 × 41,431.54
4. Step 4: Simplify right side
   71,650.78x = 4,096,345,474.74
5. Step 5: Solve for x
   x = 4,096,345,474.74/71,650.78
6. Step 6: Final answer
   x = 57,170.98