Finding the Fourth Proportional to 31,032.63, 42,825.04 and 16,885.47

Step by Step Solution

1. Step 1: Write the proportion equation
   31,032.63 : 42,825.04 = 16,885.47 : x
2. Step 2: Convert to fraction form
   31,032.63/42,825.04 = 16,885.47/x
3. Step 3: Cross multiply
   31,032.63x = 42,825.04 × 16,885.47
4. Step 4: Simplify right side
   31,032.63x = 723,121,046.55
5. Step 5: Solve for x
   x = 723,121,046.55/31,032.63
6. Step 6: Final answer
   x = 23,301.96