Finding the Fourth Proportional to 21,364.56, 29,484 and 12,414.06

Step by Step Solution

1. Step 1: Write the proportion equation
   21,364.56 : 29,484 = 12,414.06 : x
2. Step 2: Convert to fraction form
   21,364.56/29,484 = 12,414.06/x
3. Step 3: Cross multiply
   21,364.56x = 29,484 × 12,414.06
4. Step 4: Simplify right side
   21,364.56x = 366,016,145.04
5. Step 5: Solve for x
   x = 366,016,145.04/21,364.56
6. Step 6: Final answer
   x = 17,131.93