Finding the Fourth Proportional to 21,892.86, 30,213.95 and 12,462.03

Step by Step Solution

1. Step 1: Write the proportion equation
   21,892.86 : 30,213.95 = 12,462.03 : x
2. Step 2: Convert to fraction form
   21,892.86/30,213.95 = 12,462.03/x
3. Step 3: Cross multiply
   21,892.86x = 30,213.95 × 12,462.03
4. Step 4: Simplify right side
   21,892.86x = 376,527,089.01
5. Step 5: Solve for x
   x = 376,527,089.01/21,892.86
6. Step 6: Final answer
   x = 17,198.62