Finding the Fourth Proportional to 116,276.37, 160,459.34 and 65,289.50

Step by Step Solution

1. Step 1: Write the proportion equation
   116,276.37 : 160,459.34 = 65,289.50 : x
2. Step 2: Convert to fraction form
   116,276.37/160,459.34 = 65,289.50/x
3. Step 3: Cross multiply
   116,276.37x = 160,459.34 × 65,289.50
4. Step 4: Simplify right side
   116,276.37x = 10,476,310,078.93
5. Step 5: Solve for x
   x = 10,476,310,078.93/116,276.37
6. Step 6: Final answer
   x = 90,098.36