Finding the Fourth Proportional to 116,771.54, 161,111.37 and 65,766.42

Step by Step Solution

1. Step 1: Write the proportion equation
   116,771.54 : 161,111.37 = 65,766.42 : x
2. Step 2: Convert to fraction form
   116,771.54/161,111.37 = 65,766.42/x
3. Step 3: Cross multiply
   116,771.54x = 161,111.37 × 65,766.42
4. Step 4: Simplify right side
   116,771.54x = 10,595,718,026.20
5. Step 5: Solve for x
   x = 10,595,718,026.20/116,771.54
6. Step 6: Final answer
   x = 90,738.88