Finding the Fourth Proportional to 21,314.34, 29,426.22 and 14,153.94

Step by Step Solution

1. Step 1: Write the proportion equation
   21,314.34 : 29,426.22 = 14,153.94 : x
2. Step 2: Convert to fraction form
   21,314.34/29,426.22 = 14,153.94/x
3. Step 3: Cross multiply
   21,314.34x = 29,426.22 × 14,153.94
4. Step 4: Simplify right side
   21,314.34x = 416,496,952.31
5. Step 5: Solve for x
   x = 416,496,952.31/21,314.34
6. Step 6: Final answer
   x = 19,540.69