Finding the Fourth Proportional to 105,423.48, 158,154.42 and 50,019

Step by Step Solution

1. Step 1: Write the proportion equation
   105,423.48 : 158,154.42 = 50,019 : x
2. Step 2: Convert to fraction form
   105,423.48/158,154.42 = 50,019/x
3. Step 3: Cross multiply
   105,423.48x = 158,154.42 × 50,019
4. Step 4: Simplify right side
   105,423.48x = 7,910,725,933.98
5. Step 5: Solve for x
   x = 7,910,725,933.98/105,423.48
6. Step 6: Final answer
   x = 75,037.61