Finding the Fourth Proportional to 105,815.10, 158,733.41 and 30,936.63

Step by Step Solution

1. Step 1: Write the proportion equation
   105,815.10 : 158,733.41 = 30,936.63 : x
2. Step 2: Convert to fraction form
   105,815.10/158,733.41 = 30,936.63/x
3. Step 3: Cross multiply
   105,815.10x = 158,733.41 × 30,936.63
4. Step 4: Simplify right side
   105,815.10x = 4,910,676,619.13
5. Step 5: Solve for x
   x = 4,910,676,619.13/105,815.10
6. Step 6: Final answer
   x = 46,408.09