Finding the Fourth Proportional to 65,078.58, 89,800.98 and 36,784.20

Step by Step Solution

1. Step 1: Write the proportion equation
   65,078.58 : 89,800.98 = 36,784.20 : x
2. Step 2: Convert to fraction form
   65,078.58/89,800.98 = 36,784.20/x
3. Step 3: Cross multiply
   65,078.58x = 89,800.98 × 36,784.20
4. Step 4: Simplify right side
   65,078.58x = 3,303,257,208.52
5. Step 5: Solve for x
   x = 3,303,257,208.52/65,078.58
6. Step 6: Final answer
   x = 50,757.98