Finding the Fourth Proportional to 57,638.21, 79,540.57 and 32,144.61

Step by Step Solution

1. Step 1: Write the proportion equation
   57,638.21 : 79,540.57 = 32,144.61 : x
2. Step 2: Convert to fraction form
   57,638.21/79,540.57 = 32,144.61/x
3. Step 3: Cross multiply
   57,638.21x = 79,540.57 × 32,144.61
4. Step 4: Simplify right side
   57,638.21x = 2,556,800,601.83
5. Step 5: Solve for x
   x = 2,556,800,601.83/57,638.21
6. Step 6: Final answer
   x = 44,359.47