Finding the Fourth Proportional to 64,834.83, 89,471.79 and 36,540.18

Step by Step Solution

1. Step 1: Write the proportion equation
   64,834.83 : 89,471.79 = 36,540.18 : x
2. Step 2: Convert to fraction form
   64,834.83/89,471.79 = 36,540.18/x
3. Step 3: Cross multiply
   64,834.83x = 89,471.79 × 36,540.18
4. Step 4: Simplify right side
   64,834.83x = 3,269,315,311.52
5. Step 5: Solve for x
   x = 3,269,315,311.52/64,834.83
6. Step 6: Final answer
   x = 50,425.29