Finding the Fourth Proportional to 32,404.62, 48,605.31 and 12,686.79

Step by Step Solution

1. Step 1: Write the proportion equation
   32,404.62 : 48,605.31 = 12,686.79 : x
2. Step 2: Convert to fraction form
   32,404.62/48,605.31 = 12,686.79/x
3. Step 3: Cross multiply
   32,404.62x = 48,605.31 × 12,686.79
4. Step 4: Simplify right side
   32,404.62x = 616,645,360.85
5. Step 5: Solve for x
   x = 616,645,360.85/32,404.62
6. Step 6: Final answer
   x = 19,029.55