Finding the Fourth Proportional to 23,082.80, 31,855.76 and 12,874.98

Step by Step Solution

1. Step 1: Write the proportion equation
   23,082.80 : 31,855.76 = 12,874.98 : x
2. Step 2: Convert to fraction form
   23,082.80/31,855.76 = 12,874.98/x
3. Step 3: Cross multiply
   23,082.80x = 31,855.76 × 12,874.98
4. Step 4: Simplify right side
   23,082.80x = 410,142,272.88
5. Step 5: Solve for x
   x = 410,142,272.88/23,082.80
6. Step 6: Final answer
   x = 17,768.31