Finding the Fourth Proportional to 31,013.01, 42,797.97 and 16,865.82

Step by Step Solution

1. Step 1: Write the proportion equation
   31,013.01 : 42,797.97 = 16,865.82 : x
2. Step 2: Convert to fraction form
   31,013.01/42,797.97 = 16,865.82/x
3. Step 3: Cross multiply
   31,013.01x = 42,797.97 × 16,865.82
4. Step 4: Simplify right side
   31,013.01x = 721,822,858.39
5. Step 5: Solve for x
   x = 721,822,858.39/31,013.01
6. Step 6: Final answer
   x = 23,274.84