Finding the Fourth Proportional to 31,126.57, 42,995.18 and 25,180.67

Step by Step Solution

1. Step 1: Write the proportion equation
   31,126.57 : 42,995.18 = 25,180.67 : x
2. Step 2: Convert to fraction form
   31,126.57/42,995.18 = 25,180.67/x
3. Step 3: Cross multiply
   31,126.57x = 42,995.18 × 25,180.67
4. Step 4: Simplify right side
   31,126.57x = 1,082,647,287.15
5. Step 5: Solve for x
   x = 1,082,647,287.15/31,126.57
6. Step 6: Final answer
   x = 34,782.09