Finding the Fourth Proportional to 31,032.07, 42,825.17 and 16,885.83

Step by Step Solution

1. Step 1: Write the proportion equation
   31,032.07 : 42,825.17 = 16,885.83 : x
2. Step 2: Convert to fraction form
   31,032.07/42,825.17 = 16,885.83/x
3. Step 3: Cross multiply
   31,032.07x = 42,825.17 × 16,885.83
4. Step 4: Simplify right side
   31,032.07x = 723,138,540.34
5. Step 5: Solve for x
   x = 723,138,540.34/31,032.07
6. Step 6: Final answer
   x = 23,302.94