Finding the Fourth Proportional to 31,044.49, 42,840.16 and 16,897.34

Step by Step Solution

1. Step 1: Write the proportion equation
   31,044.49 : 42,840.16 = 16,897.34 : x
2. Step 2: Convert to fraction form
   31,044.49/42,840.16 = 16,897.34/x
3. Step 3: Cross multiply
   31,044.49x = 42,840.16 × 16,897.34
4. Step 4: Simplify right side
   31,044.49x = 723,884,814.03
5. Step 5: Solve for x
   x = 723,884,814.03/31,044.49
6. Step 6: Final answer
   x = 23,317.66