Finding the Fourth Proportional to 21,963.12, 30,308.01 and 12,404.10

Step by Step Solution

1. Step 1: Write the proportion equation
   21,963.12 : 30,308.01 = 12,404.10 : x
2. Step 2: Convert to fraction form
   21,963.12/30,308.01 = 12,404.10/x
3. Step 3: Cross multiply
   21,963.12x = 30,308.01 × 12,404.10
4. Step 4: Simplify right side
   21,963.12x = 375,943,586.84
5. Step 5: Solve for x
   x = 375,943,586.84/21,963.12
6. Step 6: Final answer
   x = 17,117.04