Finding the Fourth Proportional to 65,067.50, 89,793.15 and 35,259.50

Step by Step Solution

1. Step 1: Write the proportion equation
   65,067.50 : 89,793.15 = 35,259.50 : x
2. Step 2: Convert to fraction form
   65,067.50/89,793.15 = 35,259.50/x
3. Step 3: Cross multiply
   65,067.50x = 89,793.15 × 35,259.50
4. Step 4: Simplify right side
   65,067.50x = 3,166,061,572.43
5. Step 5: Solve for x
   x = 3,166,061,572.43/65,067.50
6. Step 6: Final answer
   x = 48,658.11