Finding the Fourth Proportional to 57,082.37, 78,771.72 and 31,589.81

Step by Step Solution

1. Step 1: Write the proportion equation
   57,082.37 : 78,771.72 = 31,589.81 : x
2. Step 2: Convert to fraction form
   57,082.37/78,771.72 = 31,589.81/x
3. Step 3: Cross multiply
   57,082.37x = 78,771.72 × 31,589.81
4. Step 4: Simplify right side
   57,082.37x = 2,488,383,392.78
5. Step 5: Solve for x
   x = 2,488,383,392.78/57,082.37
6. Step 6: Final answer
   x = 43,592.86