Finding the Fourth Proportional to 31,122.33, 42,949.33 and 16,975.17

Step by Step Solution

1. Step 1: Write the proportion equation
   31,122.33 : 42,949.33 = 16,975.17 : x
2. Step 2: Convert to fraction form
   31,122.33/42,949.33 = 16,975.17/x
3. Step 3: Cross multiply
   31,122.33x = 42,949.33 × 16,975.17
4. Step 4: Simplify right side
   31,122.33x = 729,072,200.63
5. Step 5: Solve for x
   x = 729,072,200.63/31,122.33
6. Step 6: Final answer
   x = 23,426.02