Finding the Fourth Proportional to 113,640.38, 170,461.42 and 50,443.51

Step by Step Solution

1. Step 1: Write the proportion equation
   113,640.38 : 170,461.42 = 50,443.51 : x
2. Step 2: Convert to fraction form
   113,640.38/170,461.42 = 50,443.51/x
3. Step 3: Cross multiply
   113,640.38x = 170,461.42 × 50,443.51
4. Step 4: Simplify right side
   113,640.38x = 8,598,671,792.12
5. Step 5: Solve for x
   x = 8,598,671,792.12/113,640.38
6. Step 6: Final answer
   x = 75,665.64