Finding the Fourth Proportional to 105,800.69, 158,711.27 and 30,919.14

Step by Step Solution

1. Step 1: Write the proportion equation
   105,800.69 : 158,711.27 = 30,919.14 : x
2. Step 2: Convert to fraction form
   105,800.69/158,711.27 = 30,919.14/x
3. Step 3: Cross multiply
   105,800.69x = 158,711.27 × 30,919.14
4. Step 4: Simplify right side
   105,800.69x = 4,907,215,822.11
5. Step 5: Solve for x
   x = 4,907,215,822.11/105,800.69
6. Step 6: Final answer
   x = 46,381.70