Finding the Fourth Proportional to 57,321.24, 79,105.78 and 31,827.60

Step by Step Solution

1. Step 1: Write the proportion equation
   57,321.24 : 79,105.78 = 31,827.60 : x
2. Step 2: Convert to fraction form
   57,321.24/79,105.78 = 31,827.60/x
3. Step 3: Cross multiply
   57,321.24x = 79,105.78 × 31,827.60
4. Step 4: Simplify right side
   57,321.24x = 2,517,747,123.53
5. Step 5: Solve for x
   x = 2,517,747,123.53/57,321.24
6. Step 6: Final answer
   x = 43,923.46