Finding the Fourth Proportional to 31,111.16, 42,933.84 and 16,964.24

Step by Step Solution

1. Step 1: Write the proportion equation
   31,111.16 : 42,933.84 = 16,964.24 : x
2. Step 2: Convert to fraction form
   31,111.16/42,933.84 = 16,964.24/x
3. Step 3: Cross multiply
   31,111.16x = 42,933.84 × 16,964.24
4. Step 4: Simplify right side
   31,111.16x = 728,339,965.88
5. Step 5: Solve for x
   x = 728,339,965.88/31,111.16
6. Step 6: Final answer
   x = 23,410.89