Finding the Fourth Proportional to 80,974.79, 111,745.29 and 46,990.18

Step by Step Solution

1. Step 1: Write the proportion equation
   80,974.79 : 111,745.29 = 46,990.18 : x
2. Step 2: Convert to fraction form
   80,974.79/111,745.29 = 46,990.18/x
3. Step 3: Cross multiply
   80,974.79x = 111,745.29 × 46,990.18
4. Step 4: Simplify right side
   80,974.79x = 5,250,931,291.25
5. Step 5: Solve for x
   x = 5,250,931,291.25/80,974.79
6. Step 6: Final answer
   x = 64,846.49