Finding the Fourth Proportional to 65,682.57, 90,642.05 and 37,388.25

Step by Step Solution

1. Step 1: Write the proportion equation
   65,682.57 : 90,642.05 = 37,388.25 : x
2. Step 2: Convert to fraction form
   65,682.57/90,642.05 = 37,388.25/x
3. Step 3: Cross multiply
   65,682.57x = 90,642.05 × 37,388.25
4. Step 4: Simplify right side
   65,682.57x = 3,388,947,625.91
5. Step 5: Solve for x
   x = 3,388,947,625.91/65,682.57
6. Step 6: Final answer
   x = 51,595.84