Finding the Fourth Proportional to 12,340.23, 17,023.49 and 8,089.42

Step by Step Solution

1. Step 1: Write the proportion equation
   12,340.23 : 17,023.49 = 8,089.42 : x
2. Step 2: Convert to fraction form
   12,340.23/17,023.49 = 8,089.42/x
3. Step 3: Cross multiply
   12,340.23x = 17,023.49 × 8,089.42
4. Step 4: Simplify right side
   12,340.23x = 137,710,160.48
5. Step 5: Solve for x
   x = 137,710,160.48/12,340.23
6. Step 6: Final answer
   x = 11,159.45