Finding the Fourth Proportional to 12,582.78, 17,367.87 and 10,082.34

Step by Step Solution

1. Step 1: Write the proportion equation
   12,582.78 : 17,367.87 = 10,082.34 : x
2. Step 2: Convert to fraction form
   12,582.78/17,367.87 = 10,082.34/x
3. Step 3: Cross multiply
   12,582.78x = 17,367.87 × 10,082.34
4. Step 4: Simplify right side
   12,582.78x = 175,108,770.42
5. Step 5: Solve for x
   x = 175,108,770.42/12,582.78
6. Step 6: Final answer
   x = 13,916.54