Finding the Fourth Proportional to 31,096.32, 42,912.93 and 16,949.16

Step by Step Solution

1. Step 1: Write the proportion equation
   31,096.32 : 42,912.93 = 16,949.16 : x
2. Step 2: Convert to fraction form
   31,096.32/42,912.93 = 16,949.16/x
3. Step 3: Cross multiply
   31,096.32x = 42,912.93 × 16,949.16
4. Step 4: Simplify right side
   31,096.32x = 727,338,116.64
5. Step 5: Solve for x
   x = 727,338,116.64/31,096.32
6. Step 6: Final answer
   x = 23,389.85