Finding the Fourth Proportional to 64,662.72, 89,234.52 and 36,368.38

Step by Step Solution

1. Step 1: Write the proportion equation
   64,662.72 : 89,234.52 = 36,368.38 : x
2. Step 2: Convert to fraction form
   64,662.72/89,234.52 = 36,368.38/x
3. Step 3: Cross multiply
   64,662.72x = 89,234.52 × 36,368.38
4. Step 4: Simplify right side
   64,662.72x = 3,245,314,932.48
5. Step 5: Solve for x
   x = 3,245,314,932.48/64,662.72
6. Step 6: Final answer
   x = 50,188.35