Finding the Fourth Proportional to 31,032.86, 42,825.29 and 16,885.62

Step by Step Solution

1. Step 1: Write the proportion equation
   31,032.86 : 42,825.29 = 16,885.62 : x
2. Step 2: Convert to fraction form
   31,032.86/42,825.29 = 16,885.62/x
3. Step 3: Cross multiply
   31,032.86x = 42,825.29 × 16,885.62
4. Step 4: Simplify right side
   31,032.86x = 723,131,488.90
5. Step 5: Solve for x
   x = 723,131,488.90/31,032.86
6. Step 6: Final answer
   x = 23,302.13