Finding the Fourth Proportional to 21,093.40, 29,103.06 and 14,713.12

Step by Step Solution

1. Step 1: Write the proportion equation
   21,093.40 : 29,103.06 = 14,713.12 : x
2. Step 2: Convert to fraction form
   21,093.40/29,103.06 = 14,713.12/x
3. Step 3: Cross multiply
   21,093.40x = 29,103.06 × 14,713.12
4. Step 4: Simplify right side
   21,093.40x = 428,196,814.15
5. Step 5: Solve for x
   x = 428,196,814.15/21,093.40
6. Step 6: Final answer
   x = 20,300.04