Finding the Fourth Proportional to 65,680.25, 90,638.85 and 37,385.94

Step by Step Solution

1. Step 1: Write the proportion equation
   65,680.25 : 90,638.85 = 37,385.94 : x
2. Step 2: Convert to fraction form
   65,680.25/90,638.85 = 37,385.94/x
3. Step 3: Cross multiply
   65,680.25x = 90,638.85 × 37,385.94
4. Step 4: Simplify right side
   65,680.25x = 3,388,618,607.77
5. Step 5: Solve for x
   x = 3,388,618,607.77/65,680.25
6. Step 6: Final answer
   x = 51,592.66