Finding the Fourth Proportional to 21,495.29, 29,663.52 and 12,063.86

Step by Step Solution

1. Step 1: Write the proportion equation
   21,495.29 : 29,663.52 = 12,063.86 : x
2. Step 2: Convert to fraction form
   21,495.29/29,663.52 = 12,063.86/x
3. Step 3: Cross multiply
   21,495.29x = 29,663.52 × 12,063.86
4. Step 4: Simplify right side
   21,495.29x = 357,856,404.07
5. Step 5: Solve for x
   x = 357,856,404.07/21,495.29
6. Step 6: Final answer
   x = 16,648.13