Finding the Fourth Proportional to 31,032.99, 42,825.33 and 16,885.89

Step by Step Solution

1. Step 1: Write the proportion equation
   31,032.99 : 42,825.33 = 16,885.89 : x
2. Step 2: Convert to fraction form
   31,032.99/42,825.33 = 16,885.89/x
3. Step 3: Cross multiply
   31,032.99x = 42,825.33 × 16,885.89
4. Step 4: Simplify right side
   31,032.99x = 723,143,811.59
5. Step 5: Solve for x
   x = 723,143,811.59/31,032.99
6. Step 6: Final answer
   x = 23,302.42