Finding the Fourth Proportional to 57,728.88, 79,667.46 and 32,580

Step by Step Solution

1. Step 1: Write the proportion equation
   57,728.88 : 79,667.46 = 32,580 : x
2. Step 2: Convert to fraction form
   57,728.88/79,667.46 = 32,580/x
3. Step 3: Cross multiply
   57,728.88x = 79,667.46 × 32,580
4. Step 4: Simplify right side
   57,728.88x = 2,595,565,846.80
5. Step 5: Solve for x
   x = 2,595,565,846.80/57,728.88
6. Step 6: Final answer
   x = 44,961.31