Finding the Fourth Proportional to 31,012.29, 42,796.67 and 16,865.25

Step by Step Solution

1. Step 1: Write the proportion equation
   31,012.29 : 42,796.67 = 16,865.25 : x
2. Step 2: Convert to fraction form
   31,012.29/42,796.67 = 16,865.25/x
3. Step 3: Cross multiply
   31,012.29x = 42,796.67 × 16,865.25
4. Step 4: Simplify right side
   31,012.29x = 721,776,454.39
5. Step 5: Solve for x
   x = 721,776,454.39/31,012.29
6. Step 6: Final answer
   x = 23,273.88