Finding the Fourth Proportional to 116,949.57, 161,390.36 and 65,962.20

Step by Step Solution

1. Step 1: Write the proportion equation
   116,949.57 : 161,390.36 = 65,962.20 : x
2. Step 2: Convert to fraction form
   116,949.57/161,390.36 = 65,962.20/x
3. Step 3: Cross multiply
   116,949.57x = 161,390.36 × 65,962.20
4. Step 4: Simplify right side
   116,949.57x = 10,645,662,874.58
5. Step 5: Solve for x
   x = 10,645,662,874.58/116,949.57
6. Step 6: Final answer
   x = 91,027.81