Finding the Fourth Proportional to 72,768, 109,186.56 and 23,520

Step by Step Solution

1. Step 1: Write the proportion equation
   72,768 : 109,186.56 = 23,520 : x
2. Step 2: Convert to fraction form
   72,768/109,186.56 = 23,520/x
3. Step 3: Cross multiply
   72,768x = 109,186.56 × 23,520
4. Step 4: Simplify right side
   72,768x = 2,568,067,891.20
5. Step 5: Solve for x
   x = 2,568,067,891.20/72,768
6. Step 6: Final answer
   x = 35,291.17