Finding the Fourth Proportional to 105,519.93, 158,288.09 and 30,641.31

Step by Step Solution

1. Step 1: Write the proportion equation
   105,519.93 : 158,288.09 = 30,641.31 : x
2. Step 2: Convert to fraction form
   105,519.93/158,288.09 = 30,641.31/x
3. Step 3: Cross multiply
   105,519.93x = 158,288.09 × 30,641.31
4. Step 4: Simplify right side
   105,519.93x = 4,850,154,435.00
5. Step 5: Solve for x
   x = 4,850,154,435.00/105,519.93
6. Step 6: Final answer
   x = 45,964.34