Finding the Fourth Proportional to 32,398.50, 48,578.61 and 12,654.15

Step by Step Solution

1. Step 1: Write the proportion equation
   32,398.50 : 48,578.61 = 12,654.15 : x
2. Step 2: Convert to fraction form
   32,398.50/48,578.61 = 12,654.15/x
3. Step 3: Cross multiply
   32,398.50x = 48,578.61 × 12,654.15
4. Step 4: Simplify right side
   32,398.50x = 614,721,017.73
5. Step 5: Solve for x
   x = 614,721,017.73/32,398.50
6. Step 6: Final answer
   x = 18,973.75