Finding the Fourth Proportional to 111,395.84, 167,081.91 and 31,431.83

Step by Step Solution

1. Step 1: Write the proportion equation
   111,395.84 : 167,081.91 = 31,431.83 : x
2. Step 2: Convert to fraction form
   111,395.84/167,081.91 = 31,431.83/x
3. Step 3: Cross multiply
   111,395.84x = 167,081.91 × 31,431.83
4. Step 4: Simplify right side
   111,395.84x = 5,251,689,237.92
5. Step 5: Solve for x
   x = 5,251,689,237.92/111,395.84
6. Step 6: Final answer
   x = 47,144.39