Finding the Fourth Proportional to 65,878.50, 90,912.36 and 35,663.82

Step by Step Solution

1. Step 1: Write the proportion equation
   65,878.50 : 90,912.36 = 35,663.82 : x
2. Step 2: Convert to fraction form
   65,878.50/90,912.36 = 35,663.82/x
3. Step 3: Cross multiply
   65,878.50x = 90,912.36 × 35,663.82
4. Step 4: Simplify right side
   65,878.50x = 3,242,282,042.82
5. Step 5: Solve for x
   x = 3,242,282,042.82/65,878.50
6. Step 6: Final answer
   x = 49,216.09