Finding the Fourth Proportional to 65,645.69, 90,591.42 and 37,351.38

Step by Step Solution

1. Step 1: Write the proportion equation
   65,645.69 : 90,591.42 = 37,351.38 : x
2. Step 2: Convert to fraction form
   65,645.69/90,591.42 = 37,351.38/x
3. Step 3: Cross multiply
   65,645.69x = 90,591.42 × 37,351.38
4. Step 4: Simplify right side
   65,645.69x = 3,383,714,553.16
5. Step 5: Solve for x
   x = 3,383,714,553.16/65,645.69
6. Step 6: Final answer
   x = 51,545.12