Finding the Fourth Proportional to 64,665.60, 89,226.72 and 36,360.96

Step by Step Solution

1. Step 1: Write the proportion equation
   64,665.60 : 89,226.72 = 36,360.96 : x
2. Step 2: Convert to fraction form
   64,665.60/89,226.72 = 36,360.96/x
3. Step 3: Cross multiply
   64,665.60x = 89,226.72 × 36,360.96
4. Step 4: Simplify right side
   64,665.60x = 3,244,369,196.85
5. Step 5: Solve for x
   x = 3,244,369,196.85/64,665.60
6. Step 6: Final answer
   x = 50,171.49