Finding the Fourth Proportional to 116,731.35, 161,087.53 and 65,744.18

Step by Step Solution

1. Step 1: Write the proportion equation
   116,731.35 : 161,087.53 = 65,744.18 : x
2. Step 2: Convert to fraction form
   116,731.35/161,087.53 = 65,744.18/x
3. Step 3: Cross multiply
   116,731.35x = 161,087.53 × 65,744.18
4. Step 4: Simplify right side
   116,731.35x = 10,590,567,568.08
5. Step 5: Solve for x
   x = 10,590,567,568.08/116,731.35
6. Step 6: Final answer
   x = 90,725.99