Finding the Fourth Proportional to 31,106, 42,926.38 and 16,958.54

Step by Step Solution

1. Step 1: Write the proportion equation
   31,106 : 42,926.38 = 16,958.54 : x
2. Step 2: Convert to fraction form
   31,106/42,926.38 = 16,958.54/x
3. Step 3: Cross multiply
   31,106x = 42,926.38 × 16,958.54
4. Step 4: Simplify right side
   31,106x = 727,968,732.29
5. Step 5: Solve for x
   x = 727,968,732.29/31,106
6. Step 6: Final answer
   x = 23,402.84