Finding the Fourth Proportional to 105,720.60, 158,588.10 and 33,667.80

Step by Step Solution

1. Step 1: Write the proportion equation
   105,720.60 : 158,588.10 = 33,667.80 : x
2. Step 2: Convert to fraction form
   105,720.60/158,588.10 = 33,667.80/x
3. Step 3: Cross multiply
   105,720.60x = 158,588.10 × 33,667.80
4. Step 4: Simplify right side
   105,720.60x = 5,339,312,433.18
5. Step 5: Solve for x
   x = 5,339,312,433.18/105,720.60
6. Step 6: Final answer
   x = 50,503.99