Finding the Fourth Proportional to 72,614.57, 108,964.49 and 30,491.42

Step by Step Solution

1. Step 1: Write the proportion equation
   72,614.57 : 108,964.49 = 30,491.42 : x
2. Step 2: Convert to fraction form
   72,614.57/108,964.49 = 30,491.42/x
3. Step 3: Cross multiply
   72,614.57x = 108,964.49 × 30,491.42
4. Step 4: Simplify right side
   72,614.57x = 3,322,481,561.08
5. Step 5: Solve for x
   x = 3,322,481,561.08/72,614.57
6. Step 6: Final answer
   x = 45,755.02