Finding the Fourth Proportional to 14,079.52, 19,379.60 and 12,306.72

Step by Step Solution

1. Step 1: Write the proportion equation
   14,079.52 : 19,379.60 = 12,306.72 : x
2. Step 2: Convert to fraction form
   14,079.52/19,379.60 = 12,306.72/x
3. Step 3: Cross multiply
   14,079.52x = 19,379.60 × 12,306.72
4. Step 4: Simplify right side
   14,079.52x = 238,499,310.91
5. Step 5: Solve for x
   x = 238,499,310.91/14,079.52
6. Step 6: Final answer
   x = 16,939.45