Finding the Fourth Proportional to 31,023.50, 42,811.17 and 16,876.34

Step by Step Solution

1. Step 1: Write the proportion equation
   31,023.50 : 42,811.17 = 16,876.34 : x
2. Step 2: Convert to fraction form
   31,023.50/42,811.17 = 16,876.34/x
3. Step 3: Cross multiply
   31,023.50x = 42,811.17 × 16,876.34
4. Step 4: Simplify right side
   31,023.50x = 722,495,646.66
5. Step 5: Solve for x
   x = 722,495,646.66/31,023.50
6. Step 6: Final answer
   x = 23,288.66