Finding the Fourth Proportional to 21,893.69, 30,213.33 and 12,462.25

Step by Step Solution

1. Step 1: Write the proportion equation
   21,893.69 : 30,213.33 = 12,462.25 : x
2. Step 2: Convert to fraction form
   21,893.69/30,213.33 = 12,462.25/x
3. Step 3: Cross multiply
   21,893.69x = 30,213.33 × 12,462.25
4. Step 4: Simplify right side
   21,893.69x = 376,526,009.48
5. Step 5: Solve for x
   x = 376,526,009.48/21,893.69
6. Step 6: Final answer
   x = 17,197.92