Finding the Fourth Proportional to 32,685, 49,043.64 and 12,963.12

Step by Step Solution

1. Step 1: Write the proportion equation
   32,685 : 49,043.64 = 12,963.12 : x
2. Step 2: Convert to fraction form
   32,685/49,043.64 = 12,963.12/x
3. Step 3: Cross multiply
   32,685x = 49,043.64 × 12,963.12
4. Step 4: Simplify right side
   32,685x = 635,758,590.56
5. Step 5: Solve for x
   x = 635,758,590.56/32,685
6. Step 6: Final answer
   x = 19,451.08