Finding the Fourth Proportional to 31,096.24, 42,912.79 and 16,949.10

Step by Step Solution

1. Step 1: Write the proportion equation
   31,096.24 : 42,912.79 = 16,949.10 : x
2. Step 2: Convert to fraction form
   31,096.24/42,912.79 = 16,949.10/x
3. Step 3: Cross multiply
   31,096.24x = 42,912.79 × 16,949.10
4. Step 4: Simplify right side
   31,096.24x = 727,333,168.99
5. Step 5: Solve for x
   x = 727,333,168.99/31,096.24
6. Step 6: Final answer
   x = 23,389.75