Finding the Fourth Proportional to 21,984.52, 30,341.30 and 12,424.81

Step by Step Solution

1. Step 1: Write the proportion equation
   21,984.52 : 30,341.30 = 12,424.81 : x
2. Step 2: Convert to fraction form
   21,984.52/30,341.30 = 12,424.81/x
3. Step 3: Cross multiply
   21,984.52x = 30,341.30 × 12,424.81
4. Step 4: Simplify right side
   21,984.52x = 376,984,887.65
5. Step 5: Solve for x
   x = 376,984,887.65/21,984.52
6. Step 6: Final answer
   x = 17,147.74