Finding the Fourth Proportional to 17,926.72, 24,745.56 and 15,398.68

Step by Step Solution

1. Step 1: Write the proportion equation
   17,926.72 : 24,745.56 = 15,398.68 : x
2. Step 2: Convert to fraction form
   17,926.72/24,745.56 = 15,398.68/x
3. Step 3: Cross multiply
   17,926.72x = 24,745.56 × 15,398.68
4. Step 4: Simplify right side
   17,926.72x = 381,048,959.86
5. Step 5: Solve for x
   x = 381,048,959.86/17,926.72
6. Step 6: Final answer
   x = 21,255.92