Finding the Fourth Proportional to 31,107.42, 42,927.57 and 16,959.96

Step by Step Solution

1. Step 1: Write the proportion equation
   31,107.42 : 42,927.57 = 16,959.96 : x
2. Step 2: Convert to fraction form
   31,107.42/42,927.57 = 16,959.96/x
3. Step 3: Cross multiply
   31,107.42x = 42,927.57 × 16,959.96
4. Step 4: Simplify right side
   31,107.42x = 728,049,870.10
5. Step 5: Solve for x
   x = 728,049,870.10/31,107.42
6. Step 6: Final answer
   x = 23,404.38