Finding the Fourth Proportional to 31,010.04, 42,793.56 and 16,863

Step by Step Solution

1. Step 1: Write the proportion equation
   31,010.04 : 42,793.56 = 16,863 : x
2. Step 2: Convert to fraction form
   31,010.04/42,793.56 = 16,863/x
3. Step 3: Cross multiply
   31,010.04x = 42,793.56 × 16,863
4. Step 4: Simplify right side
   31,010.04x = 721,627,802.28
5. Step 5: Solve for x
   x = 721,627,802.28/31,010.04
6. Step 6: Final answer
   x = 23,270.78