Finding the Fourth Proportional to 65,067.60, 89,793.12 and 35,259.60

Step by Step Solution

1. Step 1: Write the proportion equation
   65,067.60 : 89,793.12 = 35,259.60 : x
2. Step 2: Convert to fraction form
   65,067.60/89,793.12 = 35,259.60/x
3. Step 3: Cross multiply
   65,067.60x = 89,793.12 × 35,259.60
4. Step 4: Simplify right side
   65,067.60x = 3,166,069,493.95
5. Step 5: Solve for x
   x = 3,166,069,493.95/65,067.60
6. Step 6: Final answer
   x = 48,658.16