Finding the Fourth Proportional to 65,178.57, 89,946.42 and 35,370.57

Step by Step Solution

1. Step 1: Write the proportion equation
   65,178.57 : 89,946.42 = 35,370.57 : x
2. Step 2: Convert to fraction form
   65,178.57/89,946.42 = 35,370.57/x
3. Step 3: Cross multiply
   65,178.57x = 89,946.42 × 35,370.57
4. Step 4: Simplify right side
   65,178.57x = 3,181,456,144.86
5. Step 5: Solve for x
   x = 3,181,456,144.86/65,178.57
6. Step 6: Final answer
   x = 48,811.38