Finding the Fourth Proportional to 80,890.38, 111,629.10 and 46,918.98

Step by Step Solution

1. Step 1: Write the proportion equation
   80,890.38 : 111,629.10 = 46,918.98 : x
2. Step 2: Convert to fraction form
   80,890.38/111,629.10 = 46,918.98/x
3. Step 3: Cross multiply
   80,890.38x = 111,629.10 × 46,918.98
4. Step 4: Simplify right side
   80,890.38x = 5,237,523,510.32
5. Step 5: Solve for x
   x = 5,237,523,510.32/80,890.38
6. Step 6: Final answer
   x = 64,748.41