Finding the Fourth Proportional to 116,280.65, 160,465.25 and 65,293.79

Step by Step Solution

1. Step 1: Write the proportion equation
   116,280.65 : 160,465.25 = 65,293.79 : x
2. Step 2: Convert to fraction form
   116,280.65/160,465.25 = 65,293.79/x
3. Step 3: Cross multiply
   116,280.65x = 160,465.25 × 65,293.79
4. Step 4: Simplify right side
   116,280.65x = 10,477,383,533.47
5. Step 5: Solve for x
   x = 10,477,383,533.47/116,280.65
6. Step 6: Final answer
   x = 90,104.27