Finding the Fourth Proportional to 65,678.25, 90,636.09 and 37,383.94

Step by Step Solution

1. Step 1: Write the proportion equation
   65,678.25 : 90,636.09 = 37,383.94 : x
2. Step 2: Convert to fraction form
   65,678.25/90,636.09 = 37,383.94/x
3. Step 3: Cross multiply
   65,678.25x = 90,636.09 × 37,383.94
4. Step 4: Simplify right side
   65,678.25x = 3,388,333,923.80
5. Step 5: Solve for x
   x = 3,388,333,923.80/65,678.25
6. Step 6: Final answer
   x = 51,589.89