Finding the Fourth Proportional to 118,981.44, 164,196.57 and 65,269.20

Step by Step Solution

1. Step 1: Write the proportion equation
   118,981.44 : 164,196.57 = 65,269.20 : x
2. Step 2: Convert to fraction form
   118,981.44/164,196.57 = 65,269.20/x
3. Step 3: Cross multiply
   118,981.44x = 164,196.57 × 65,269.20
4. Step 4: Simplify right side
   118,981.44x = 10,716,978,766.64
5. Step 5: Solve for x
   x = 10,716,978,766.64/118,981.44
6. Step 6: Final answer
   x = 90,072.69