Finding the Fourth Proportional to 112,231.29, 168,315.79 and 31,159.69

Step by Step Solution

1. Step 1: Write the proportion equation
   112,231.29 : 168,315.79 = 31,159.69 : x
2. Step 2: Convert to fraction form
   112,231.29/168,315.79 = 31,159.69/x
3. Step 3: Cross multiply
   112,231.29x = 168,315.79 × 31,159.69
4. Step 4: Simplify right side
   112,231.29x = 5,244,667,838.51
5. Step 5: Solve for x
   x = 5,244,667,838.51/112,231.29
6. Step 6: Final answer
   x = 46,730.89