Finding the Fourth Proportional to 111,144.39, 166,702.14 and 65,578.25

Step by Step Solution

1. Step 1: Write the proportion equation
   111,144.39 : 166,702.14 = 65,578.25 : x
2. Step 2: Convert to fraction form
   111,144.39/166,702.14 = 65,578.25/x
3. Step 3: Cross multiply
   111,144.39x = 166,702.14 × 65,578.25
4. Step 4: Simplify right side
   111,144.39x = 10,932,033,778.94
5. Step 5: Solve for x
   x = 10,932,033,778.94/111,144.39
6. Step 6: Final answer
   x = 98,358.84