Finding the Fourth Proportional to 31,298.42, 43,191.66 and 16,958.18

Step by Step Solution

1. Step 1: Write the proportion equation
   31,298.42 : 43,191.66 = 16,958.18 : x
2. Step 2: Convert to fraction form
   31,298.42/43,191.66 = 16,958.18/x
3. Step 3: Cross multiply
   31,298.42x = 43,191.66 × 16,958.18
4. Step 4: Simplify right side
   31,298.42x = 732,451,944.78
5. Step 5: Solve for x
   x = 732,451,944.78/31,298.42
6. Step 6: Final answer
   x = 23,402.20