Finding the Fourth Proportional to 31,665.12, 47,519.31 and 16,884.42

Step by Step Solution

1. Step 1: Write the proportion equation
   31,665.12 : 47,519.31 = 16,884.42 : x
2. Step 2: Convert to fraction form
   31,665.12/47,519.31 = 16,884.42/x
3. Step 3: Cross multiply
   31,665.12x = 47,519.31 × 16,884.42
4. Step 4: Simplify right side
   31,665.12x = 802,335,988.15
5. Step 5: Solve for x
   x = 802,335,988.15/31,665.12
6. Step 6: Final answer
   x = 25,338.16