Finding the Fourth Proportional to 64,839.56, 89,475.12 and 36,162.16

Step by Step Solution

1. Step 1: Write the proportion equation
   64,839.56 : 89,475.12 = 36,162.16 : x
2. Step 2: Convert to fraction form
   64,839.56/89,475.12 = 36,162.16/x
3. Step 3: Cross multiply
   64,839.56x = 89,475.12 × 36,162.16
4. Step 4: Simplify right side
   64,839.56x = 3,235,613,605.46
5. Step 5: Solve for x
   x = 3,235,613,605.46/64,839.56
6. Step 6: Final answer
   x = 49,901.84