Finding the Fourth Proportional to 31,689.08, 47,537.94 and 10,907

Step by Step Solution

1. Step 1: Write the proportion equation
   31,689.08 : 47,537.94 = 10,907 : x
2. Step 2: Convert to fraction form
   31,689.08/47,537.94 = 10,907/x
3. Step 3: Cross multiply
   31,689.08x = 47,537.94 × 10,907
4. Step 4: Simplify right side
   31,689.08x = 518,496,311.58
5. Step 5: Solve for x
   x = 518,496,311.58/31,689.08
6. Step 6: Final answer
   x = 16,361.99