Finding the Fourth Proportional to 105,766.14, 158,664.06 and 30,891.78

Step by Step Solution

1. Step 1: Write the proportion equation
   105,766.14 : 158,664.06 = 30,891.78 : x
2. Step 2: Convert to fraction form
   105,766.14/158,664.06 = 30,891.78/x
3. Step 3: Cross multiply
   105,766.14x = 158,664.06 × 30,891.78
4. Step 4: Simplify right side
   105,766.14x = 4,901,415,235.43
5. Step 5: Solve for x
   x = 4,901,415,235.43/105,766.14
6. Step 6: Final answer
   x = 46,342.01