Finding the Fourth Proportional to 31,023.44, 42,789.42 and 19,683.16

Step by Step Solution

1. Step 1: Write the proportion equation
   31,023.44 : 42,789.42 = 19,683.16 : x
2. Step 2: Convert to fraction form
   31,023.44/42,789.42 = 19,683.16/x
3. Step 3: Cross multiply
   31,023.44x = 42,789.42 × 19,683.16
4. Step 4: Simplify right side
   31,023.44x = 842,231,000.17
5. Step 5: Solve for x
   x = 842,231,000.17/31,023.44
6. Step 6: Final answer
   x = 27,148.21