Finding the Fourth Proportional to 116,836.37, 161,230.42 and 65,845.10

Step by Step Solution

1. Step 1: Write the proportion equation
   116,836.37 : 161,230.42 = 65,845.10 : x
2. Step 2: Convert to fraction form
   116,836.37/161,230.42 = 65,845.10/x
3. Step 3: Cross multiply
   116,836.37x = 161,230.42 × 65,845.10
4. Step 4: Simplify right side
   116,836.37x = 10,616,233,798.51
5. Step 5: Solve for x
   x = 10,616,233,798.51/116,836.37
6. Step 6: Final answer
   x = 90,864.12