Finding the Fourth Proportional to 31,007.08, 42,791.52 and 16,859.62

Step by Step Solution

1. Step 1: Write the proportion equation
   31,007.08 : 42,791.52 = 16,859.62 : x
2. Step 2: Convert to fraction form
   31,007.08/42,791.52 = 16,859.62/x
3. Step 3: Cross multiply
   31,007.08x = 42,791.52 × 16,859.62
4. Step 4: Simplify right side
   31,007.08x = 721,448,766.42
5. Step 5: Solve for x
   x = 721,448,766.42/31,007.08
6. Step 6: Final answer
   x = 23,267.23