Finding the Fourth Proportional to 64,930.38, 89,605.17 and 36,636.72

Step by Step Solution

1. Step 1: Write the proportion equation
   64,930.38 : 89,605.17 = 36,636.72 : x
2. Step 2: Convert to fraction form
   64,930.38/89,605.17 = 36,636.72/x
3. Step 3: Cross multiply
   64,930.38x = 89,605.17 × 36,636.72
4. Step 4: Simplify right side
   64,930.38x = 3,282,839,523.84
5. Step 5: Solve for x
   x = 3,282,839,523.84/64,930.38
6. Step 6: Final answer
   x = 50,559.38