Finding the Fourth Proportional to 31,023.48, 42,812.37 and 16,876.29

Step by Step Solution

1. Step 1: Write the proportion equation
   31,023.48 : 42,812.37 = 16,876.29 : x
2. Step 2: Convert to fraction form
   31,023.48/42,812.37 = 16,876.29/x
3. Step 3: Cross multiply
   31,023.48x = 42,812.37 × 16,876.29
4. Step 4: Simplify right side
   31,023.48x = 722,513,971.71
5. Step 5: Solve for x
   x = 722,513,971.71/31,023.48
6. Step 6: Final answer
   x = 23,289.26