Finding the Fourth Proportional to 20,874.18, 31,262.06 and 16,156.42

Step by Step Solution

1. Step 1: Write the proportion equation
   20,874.18 : 31,262.06 = 16,156.42 : x
2. Step 2: Convert to fraction form
   20,874.18/31,262.06 = 16,156.42/x
3. Step 3: Cross multiply
   20,874.18x = 31,262.06 × 16,156.42
4. Step 4: Simplify right side
   20,874.18x = 505,082,971.43
5. Step 5: Solve for x
   x = 505,082,971.43/20,874.18
6. Step 6: Final answer
   x = 24,196.54