Finding the Fourth Proportional to 116,019.18, 160,101.54 and 65,718.18

Step by Step Solution

1. Step 1: Write the proportion equation
   116,019.18 : 160,101.54 = 65,718.18 : x
2. Step 2: Convert to fraction form
   116,019.18/160,101.54 = 65,718.18/x
3. Step 3: Cross multiply
   116,019.18x = 160,101.54 × 65,718.18
4. Step 4: Simplify right side
   116,019.18x = 10,521,581,824.00
5. Step 5: Solve for x
   x = 10,521,581,824.00/116,019.18
6. Step 6: Final answer
   x = 90,688.30