Finding the Fourth Proportional to 31,328.82, 46,995.39 and 12,609

Step by Step Solution

1. Step 1: Write the proportion equation
   31,328.82 : 46,995.39 = 12,609 : x
2. Step 2: Convert to fraction form
   31,328.82/46,995.39 = 12,609/x
3. Step 3: Cross multiply
   31,328.82x = 46,995.39 × 12,609
4. Step 4: Simplify right side
   31,328.82x = 592,564,872.51
5. Step 5: Solve for x
   x = 592,564,872.51/31,328.82
6. Step 6: Final answer
   x = 18,914.37