Finding the Fourth Proportional to 116,798.92, 161,185.86 and 65,812.25

Step by Step Solution

1. Step 1: Write the proportion equation
   116,798.92 : 161,185.86 = 65,812.25 : x
2. Step 2: Convert to fraction form
   116,798.92/161,185.86 = 65,812.25/x
3. Step 3: Cross multiply
   116,798.92x = 161,185.86 × 65,812.25
4. Step 4: Simplify right side
   116,798.92x = 10,608,004,517.75
5. Step 5: Solve for x
   x = 10,608,004,517.75/116,798.92
6. Step 6: Final answer
   x = 90,822.80