Finding the Fourth Proportional to 116,730.35, 161,086.15 and 65,743.18

Step by Step Solution

1. Step 1: Write the proportion equation
   116,730.35 : 161,086.15 = 65,743.18 : x
2. Step 2: Convert to fraction form
   116,730.35/161,086.15 = 65,743.18/x
3. Step 3: Cross multiply
   116,730.35x = 161,086.15 × 65,743.18
4. Step 4: Simplify right side
   116,730.35x = 10,590,315,434.42
5. Step 5: Solve for x
   x = 10,590,315,434.42/116,730.35
6. Step 6: Final answer
   x = 90,724.61