Finding the Fourth Proportional to 113,431.52, 170,185.76 and 50,243.15

Step by Step Solution

1. Step 1: Write the proportion equation
   113,431.52 : 170,185.76 = 50,243.15 : x
2. Step 2: Convert to fraction form
   113,431.52/170,185.76 = 50,243.15/x
3. Step 3: Cross multiply
   113,431.52x = 170,185.76 × 50,243.15
4. Step 4: Simplify right side
   113,431.52x = 8,550,668,667.54
5. Step 5: Solve for x
   x = 8,550,668,667.54/113,431.52
6. Step 6: Final answer
   x = 75,381.77