Finding the Fourth Proportional to 12,498.30, 18,747.42 and 4,176.42

Step by Step Solution

1. Step 1: Write the proportion equation
   12,498.30 : 18,747.42 = 4,176.42 : x
2. Step 2: Convert to fraction form
   12,498.30/18,747.42 = 4,176.42/x
3. Step 3: Cross multiply
   12,498.30x = 18,747.42 × 4,176.42
4. Step 4: Simplify right side
   12,498.30x = 78,297,099.84
5. Step 5: Solve for x
   x = 78,297,099.84/12,498.30
6. Step 6: Final answer
   x = 6,264.62