Finding the Fourth Proportional to 31,771.70, 43,756.16 and 31,082.94

Step by Step Solution

1. Step 1: Write the proportion equation
   31,771.70 : 43,756.16 = 31,082.94 : x
2. Step 2: Convert to fraction form
   31,771.70/43,756.16 = 31,082.94/x
3. Step 3: Cross multiply
   31,771.70x = 43,756.16 × 31,082.94
4. Step 4: Simplify right side
   31,771.70x = 1,360,070,095.91
5. Step 5: Solve for x
   x = 1,360,070,095.91/31,771.70
6. Step 6: Final answer
   x = 42,807.60