Finding the Fourth Proportional to 12,648.53, 18,967.53 and 4,326.86

Step by Step Solution

1. Step 1: Write the proportion equation
   12,648.53 : 18,967.53 = 4,326.86 : x
2. Step 2: Convert to fraction form
   12,648.53/18,967.53 = 4,326.86/x
3. Step 3: Cross multiply
   12,648.53x = 18,967.53 × 4,326.86
4. Step 4: Simplify right side
   12,648.53x = 82,069,846.86
5. Step 5: Solve for x
   x = 82,069,846.86/12,648.53
6. Step 6: Final answer
   x = 6,488.49