Finding the Fourth Proportional to 12,067.92, 16,658.10 and 7,528.55

Step by Step Solution

1. Step 1: Write the proportion equation
   12,067.92 : 16,658.10 = 7,528.55 : x
2. Step 2: Convert to fraction form
   12,067.92/16,658.10 = 7,528.55/x
3. Step 3: Cross multiply
   12,067.92x = 16,658.10 × 7,528.55
4. Step 4: Simplify right side
   12,067.92x = 125,411,255.46
5. Step 5: Solve for x
   x = 125,411,255.46/12,067.92
6. Step 6: Final answer
   x = 10,392.12