Finding the Fourth Proportional to 12,255.98, 18,379.94 and 3,934.02

Step by Step Solution

1. Step 1: Write the proportion equation
   12,255.98 : 18,379.94 = 3,934.02 : x
2. Step 2: Convert to fraction form
   12,255.98/18,379.94 = 3,934.02/x
3. Step 3: Cross multiply
   12,255.98x = 18,379.94 × 3,934.02
4. Step 4: Simplify right side
   12,255.98x = 72,307,031.89
5. Step 5: Solve for x
   x = 72,307,031.89/12,255.98
6. Step 6: Final answer
   x = 5,899.74