Finding the Fourth Proportional to 72,576, 108,786.24 and 30,445.47

Step by Step Solution

1. Step 1: Write the proportion equation
   72,576 : 108,786.24 = 30,445.47 : x
2. Step 2: Convert to fraction form
   72,576/108,786.24 = 30,445.47/x
3. Step 3: Cross multiply
   72,576x = 108,786.24 × 30,445.47
4. Step 4: Simplify right side
   72,576x = 3,312,048,206.33
5. Step 5: Solve for x
   x = 3,312,048,206.33/72,576
6. Step 6: Final answer
   x = 45,635.58