Finding the Fourth Proportional to 16,686.78, 23,032.20 and 10,395.42

Step by Step Solution

1. Step 1: Write the proportion equation
   16,686.78 : 23,032.20 = 10,395.42 : x
2. Step 2: Convert to fraction form
   16,686.78/23,032.20 = 10,395.42/x
3. Step 3: Cross multiply
   16,686.78x = 23,032.20 × 10,395.42
4. Step 4: Simplify right side
   16,686.78x = 239,429,392.52
5. Step 5: Solve for x
   x = 239,429,392.52/16,686.78
6. Step 6: Final answer
   x = 14,348.45