Finding the Fourth Proportional to 16,400.78, 24,610.28 and 10,164.18

Step by Step Solution

1. Step 1: Write the proportion equation
   16,400.78 : 24,610.28 = 10,164.18 : x
2. Step 2: Convert to fraction form
   16,400.78/24,610.28 = 10,164.18/x
3. Step 3: Cross multiply
   16,400.78x = 24,610.28 × 10,164.18
4. Step 4: Simplify right side
   16,400.78x = 250,143,315.77
5. Step 5: Solve for x
   x = 250,143,315.77/16,400.78
6. Step 6: Final answer
   x = 15,251.92