Finding the Fourth Proportional to 31,096.51, 42,913.61 and 16,949.32

Step by Step Solution

1. Step 1: Write the proportion equation
   31,096.51 : 42,913.61 = 16,949.32 : x
2. Step 2: Convert to fraction form
   31,096.51/42,913.61 = 16,949.32/x
3. Step 3: Cross multiply
   31,096.51x = 42,913.61 × 16,949.32
4. Step 4: Simplify right side
   31,096.51x = 727,356,508.25
5. Step 5: Solve for x
   x = 727,356,508.25/31,096.51
6. Step 6: Final answer
   x = 23,390.29