Finding the Fourth Proportional to 105,823.53, 158,750.21 and 30,949.31

Step by Step Solution

1. Step 1: Write the proportion equation
   105,823.53 : 158,750.21 = 30,949.31 : x
2. Step 2: Convert to fraction form
   105,823.53/158,750.21 = 30,949.31/x
3. Step 3: Cross multiply
   105,823.53x = 158,750.21 × 30,949.31
4. Step 4: Simplify right side
   105,823.53x = 4,913,209,936.10
5. Step 5: Solve for x
   x = 4,913,209,936.10/105,823.53
6. Step 6: Final answer
   x = 46,428.33