Finding the Fourth Proportional to 31,034.96, 42,842.76 and 19,863.44

Step by Step Solution

1. Step 1: Write the proportion equation
   31,034.96 : 42,842.76 = 19,863.44 : x
2. Step 2: Convert to fraction form
   31,034.96/42,842.76 = 19,863.44/x
3. Step 3: Cross multiply
   31,034.96x = 42,842.76 × 19,863.44
4. Step 4: Simplify right side
   31,034.96x = 851,004,592.69
5. Step 5: Solve for x
   x = 851,004,592.69/31,034.96
6. Step 6: Final answer
   x = 27,420.84