Finding the Fourth Proportional to 31,150.50, 46,745.19 and 12,682.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,150.50 : 46,745.19 = 12,682.50 : x
2. Step 2: Convert to fraction form
   31,150.50/46,745.19 = 12,682.50/x
3. Step 3: Cross multiply
   31,150.50x = 46,745.19 × 12,682.50
4. Step 4: Simplify right side
   31,150.50x = 592,845,872.18
5. Step 5: Solve for x
   x = 592,845,872.18/31,150.50
6. Step 6: Final answer
   x = 19,031.66