Finding the Fourth Proportional to 31,467.98, 47,190.63 and 10,686.62

Step by Step Solution

1. Step 1: Write the proportion equation
   31,467.98 : 47,190.63 = 10,686.62 : x
2. Step 2: Convert to fraction form
   31,467.98/47,190.63 = 10,686.62/x
3. Step 3: Cross multiply
   31,467.98x = 47,190.63 × 10,686.62
4. Step 4: Simplify right side
   31,467.98x = 504,308,488.42
5. Step 5: Solve for x
   x = 504,308,488.42/31,467.98
6. Step 6: Final answer
   x = 16,026.08