Finding the Fourth Proportional to 31,032.56, 42,825.12 and 16,885.49

Step by Step Solution

1. Step 1: Write the proportion equation
   31,032.56 : 42,825.12 = 16,885.49 : x
2. Step 2: Convert to fraction form
   31,032.56/42,825.12 = 16,885.49/x
3. Step 3: Cross multiply
   31,032.56x = 42,825.12 × 16,885.49
4. Step 4: Simplify right side
   31,032.56x = 723,123,135.51
5. Step 5: Solve for x
   x = 723,123,135.51/31,032.56
6. Step 6: Final answer
   x = 23,302.08