Finding the Fourth Proportional to 105,421.48, 158,151.42 and 50,017

Step by Step Solution

1. Step 1: Write the proportion equation
   105,421.48 : 158,151.42 = 50,017 : x
2. Step 2: Convert to fraction form
   105,421.48/158,151.42 = 50,017/x
3. Step 3: Cross multiply
   105,421.48x = 158,151.42 × 50,017
4. Step 4: Simplify right side
   105,421.48x = 7,910,259,574.14
5. Step 5: Solve for x
   x = 7,910,259,574.14/105,421.48
6. Step 6: Final answer
   x = 75,034.61