Finding the Fourth Proportional to 116,608.48, 160,917.75 and 65,621.15

Step by Step Solution

1. Step 1: Write the proportion equation
   116,608.48 : 160,917.75 = 65,621.15 : x
2. Step 2: Convert to fraction form
   116,608.48/160,917.75 = 65,621.15/x
3. Step 3: Cross multiply
   116,608.48x = 160,917.75 × 65,621.15
4. Step 4: Simplify right side
   116,608.48x = 10,559,607,609.27
5. Step 5: Solve for x
   x = 10,559,607,609.27/116,608.48
6. Step 6: Final answer
   x = 90,556.09