Finding the Fourth Proportional to 40,578.98, 60,783.82 and 32,638.61

Step by Step Solution

1. Step 1: Write the proportion equation
   40,578.98 : 60,783.82 = 32,638.61 : x
2. Step 2: Convert to fraction form
   40,578.98/60,783.82 = 32,638.61/x
3. Step 3: Cross multiply
   40,578.98x = 60,783.82 × 32,638.61
4. Step 4: Simplify right side
   40,578.98x = 1,983,899,465.65
5. Step 5: Solve for x
   x = 1,983,899,465.65/40,578.98
6. Step 6: Final answer
   x = 48,889.84