Finding the Fourth Proportional to 116,275.37, 160,457.96 and 65,288.50

Step by Step Solution

1. Step 1: Write the proportion equation
   116,275.37 : 160,457.96 = 65,288.50 : x
2. Step 2: Convert to fraction form
   116,275.37/160,457.96 = 65,288.50/x
3. Step 3: Cross multiply
   116,275.37x = 160,457.96 × 65,288.50
4. Step 4: Simplify right side
   116,275.37x = 10,476,059,283.54
5. Step 5: Solve for x
   x = 10,476,059,283.54/116,275.37
6. Step 6: Final answer
   x = 90,096.98