Finding the Fourth Proportional to 12,309.25, 18,468.47 and 7,382.42

Step by Step Solution

1. Step 1: Write the proportion equation
   12,309.25 : 18,468.47 = 7,382.42 : x
2. Step 2: Convert to fraction form
   12,309.25/18,468.47 = 7,382.42/x
3. Step 3: Cross multiply
   12,309.25x = 18,468.47 × 7,382.42
4. Step 4: Simplify right side
   12,309.25x = 136,342,002.30
5. Step 5: Solve for x
   x = 136,342,002.30/12,309.25
6. Step 6: Final answer
   x = 11,076.39