Finding the Fourth Proportional to 31,681.98, 47,513.37 and 16,680.94

Step by Step Solution

1. Step 1: Write the proportion equation
   31,681.98 : 47,513.37 = 16,680.94 : x
2. Step 2: Convert to fraction form
   31,681.98/47,513.37 = 16,680.94/x
3. Step 3: Cross multiply
   31,681.98x = 47,513.37 × 16,680.94
4. Step 4: Simplify right side
   31,681.98x = 792,567,674.17
5. Step 5: Solve for x
   x = 792,567,674.17/31,681.98
6. Step 6: Final answer
   x = 25,016.36