Finding the Fourth Proportional to 12,925.20, 17,834.43 and 8,682.42

Step by Step Solution

1. Step 1: Write the proportion equation
   12,925.20 : 17,834.43 = 8,682.42 : x
2. Step 2: Convert to fraction form
   12,925.20/17,834.43 = 8,682.42/x
3. Step 3: Cross multiply
   12,925.20x = 17,834.43 × 8,682.42
4. Step 4: Simplify right side
   12,925.20x = 154,846,011.72
5. Step 5: Solve for x
   x = 154,846,011.72/12,925.20
6. Step 6: Final answer
   x = 11,980.16