Finding the Fourth Proportional to 12,423.94, 18,644.55 and 8,030.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,423.94 : 18,644.55 = 8,030.50 : x
2. Step 2: Convert to fraction form
   12,423.94/18,644.55 = 8,030.50/x
3. Step 3: Cross multiply
   12,423.94x = 18,644.55 × 8,030.50
4. Step 4: Simplify right side
   12,423.94x = 149,725,058.78
5. Step 5: Solve for x
   x = 149,725,058.78/12,423.94
6. Step 6: Final answer
   x = 12,051.33