Finding the Fourth Proportional to 116,260.16, 160,433.76 and 65,271.95

Step by Step Solution

1. Step 1: Write the proportion equation
   116,260.16 : 160,433.76 = 65,271.95 : x
2. Step 2: Convert to fraction form
   116,260.16/160,433.76 = 65,271.95/x
3. Step 3: Cross multiply
   116,260.16x = 160,433.76 × 65,271.95
4. Step 4: Simplify right side
   116,260.16x = 10,471,824,856.48
5. Step 5: Solve for x
   x = 10,471,824,856.48/116,260.16
6. Step 6: Final answer
   x = 90,072.34