Finding the Fourth Proportional to 31,014.96, 42,800.43 and 16,867.80

Step by Step Solution

1. Step 1: Write the proportion equation
   31,014.96 : 42,800.43 = 16,867.80 : x
2. Step 2: Convert to fraction form
   31,014.96/42,800.43 = 16,867.80/x
3. Step 3: Cross multiply
   31,014.96x = 42,800.43 × 16,867.80
4. Step 4: Simplify right side
   31,014.96x = 721,949,093.15
5. Step 5: Solve for x
   x = 721,949,093.15/31,014.96
6. Step 6: Final answer
   x = 23,277.45