Finding the Fourth Proportional to 50,786.84, 70,053.18 and 31,891.16

Step by Step Solution

1. Step 1: Write the proportion equation
   50,786.84 : 70,053.18 = 31,891.16 : x
2. Step 2: Convert to fraction form
   50,786.84/70,053.18 = 31,891.16/x
3. Step 3: Cross multiply
   50,786.84x = 70,053.18 × 31,891.16
4. Step 4: Simplify right side
   50,786.84x = 2,234,077,171.89
5. Step 5: Solve for x
   x = 2,234,077,171.89/50,786.84
6. Step 6: Final answer
   x = 43,989.29