Finding the Fourth Proportional to 57,082.59, 78,771.18 and 31,588.50

Step by Step Solution

1. Step 1: Write the proportion equation
   57,082.59 : 78,771.18 = 31,588.50 : x
2. Step 2: Convert to fraction form
   57,082.59/78,771.18 = 31,588.50/x
3. Step 3: Cross multiply
   57,082.59x = 78,771.18 × 31,588.50
4. Step 4: Simplify right side
   57,082.59x = 2,488,263,419.43
5. Step 5: Solve for x
   x = 2,488,263,419.43/57,082.59
6. Step 6: Final answer
   x = 43,590.58