Finding the Fourth Proportional to 105,800.34, 158,717.49 and 30,910.98

Step by Step Solution

1. Step 1: Write the proportion equation
   105,800.34 : 158,717.49 = 30,910.98 : x
2. Step 2: Convert to fraction form
   105,800.34/158,717.49 = 30,910.98/x
3. Step 3: Cross multiply
   105,800.34x = 158,717.49 × 30,910.98
4. Step 4: Simplify right side
   105,800.34x = 4,906,113,159.04
5. Step 5: Solve for x
   x = 4,906,113,159.04/105,800.34
6. Step 6: Final answer
   x = 46,371.43