Finding the Fourth Proportional to 21,514.72, 29,702.46 and 13,967.86

Step by Step Solution

1. Step 1: Write the proportion equation
   21,514.72 : 29,702.46 = 13,967.86 : x
2. Step 2: Convert to fraction form
   21,514.72/29,702.46 = 13,967.86/x
3. Step 3: Cross multiply
   21,514.72x = 29,702.46 × 13,967.86
4. Step 4: Simplify right side
   21,514.72x = 414,879,802.94
5. Step 5: Solve for x
   x = 414,879,802.94/21,514.72
6. Step 6: Final answer
   x = 19,283.53