Finding the Fourth Proportional to 110,613.16, 165,944.31 and 31,721.32

Step by Step Solution

1. Step 1: Write the proportion equation
   110,613.16 : 165,944.31 = 31,721.32 : x
2. Step 2: Convert to fraction form
   110,613.16/165,944.31 = 31,721.32/x
3. Step 3: Cross multiply
   110,613.16x = 165,944.31 × 31,721.32
4. Step 4: Simplify right side
   110,613.16x = 5,263,972,559.69
5. Step 5: Solve for x
   x = 5,263,972,559.69/110,613.16
6. Step 6: Final answer
   x = 47,589.03