Finding the Fourth Proportional to 21,600.72, 29,814.56 and 14,065.87

Step by Step Solution

1. Step 1: Write the proportion equation
   21,600.72 : 29,814.56 = 14,065.87 : x
2. Step 2: Convert to fraction form
   21,600.72/29,814.56 = 14,065.87/x
3. Step 3: Cross multiply
   21,600.72x = 29,814.56 × 14,065.87
4. Step 4: Simplify right side
   21,600.72x = 419,367,725.07
5. Step 5: Solve for x
   x = 419,367,725.07/21,600.72
6. Step 6: Final answer
   x = 19,414.53