Finding the Fourth Proportional to 31,051.14, 42,849.30 and 16,904

Step by Step Solution

1. Step 1: Write the proportion equation
   31,051.14 : 42,849.30 = 16,904 : x
2. Step 2: Convert to fraction form
   31,051.14/42,849.30 = 16,904/x
3. Step 3: Cross multiply
   31,051.14x = 42,849.30 × 16,904
4. Step 4: Simplify right side
   31,051.14x = 724,324,567.20
5. Step 5: Solve for x
   x = 724,324,567.20/31,051.14
6. Step 6: Final answer
   x = 23,326.83