Finding the Fourth Proportional to 12,392.54, 17,094.59 and 9,031.40

Step by Step Solution

1. Step 1: Write the proportion equation
   12,392.54 : 17,094.59 = 9,031.40 : x
2. Step 2: Convert to fraction form
   12,392.54/17,094.59 = 9,031.40/x
3. Step 3: Cross multiply
   12,392.54x = 17,094.59 × 9,031.40
4. Step 4: Simplify right side
   12,392.54x = 154,388,098.27
5. Step 5: Solve for x
   x = 154,388,098.27/12,392.54
6. Step 6: Final answer
   x = 12,458.14