Finding the Fourth Proportional to 72,560.67, 108,860.69 and 30,418.59

Step by Step Solution

1. Step 1: Write the proportion equation
   72,560.67 : 108,860.69 = 30,418.59 : x
2. Step 2: Convert to fraction form
   72,560.67/108,860.69 = 30,418.59/x
3. Step 3: Cross multiply
   72,560.67x = 108,860.69 × 30,418.59
4. Step 4: Simplify right side
   72,560.67x = 3,311,388,696.23
5. Step 5: Solve for x
   x = 3,311,388,696.23/72,560.67
6. Step 6: Final answer
   x = 45,636.14