Finding the Fourth Proportional to 120,990.69, 181,485.42 and 31,033.02

Step by Step Solution

1. Step 1: Write the proportion equation
   120,990.69 : 181,485.42 = 31,033.02 : x
2. Step 2: Convert to fraction form
   120,990.69/181,485.42 = 31,033.02/x
3. Step 3: Cross multiply
   120,990.69x = 181,485.42 × 31,033.02
4. Step 4: Simplify right side
   120,990.69x = 5,632,040,668.57
5. Step 5: Solve for x
   x = 5,632,040,668.57/120,990.69
6. Step 6: Final answer
   x = 46,549.37