Finding the Fourth Proportional to 31,007.27, 42,789.16 and 19,068.68

Step by Step Solution

1. Step 1: Write the proportion equation
   31,007.27 : 42,789.16 = 19,068.68 : x
2. Step 2: Convert to fraction form
   31,007.27/42,789.16 = 19,068.68/x
3. Step 3: Cross multiply
   31,007.27x = 42,789.16 × 19,068.68
4. Step 4: Simplify right side
   31,007.27x = 815,932,930.32
5. Step 5: Solve for x
   x = 815,932,930.32/31,007.27
6. Step 6: Final answer
   x = 26,314.24