Finding the Fourth Proportional to 21,364.14, 32,057.71 and 8,892.78

Step by Step Solution

1. Step 1: Write the proportion equation
   21,364.14 : 32,057.71 = 8,892.78 : x
2. Step 2: Convert to fraction form
   21,364.14/32,057.71 = 8,892.78/x
3. Step 3: Cross multiply
   21,364.14x = 32,057.71 × 8,892.78
4. Step 4: Simplify right side
   21,364.14x = 285,082,019.89
5. Step 5: Solve for x
   x = 285,082,019.89/21,364.14
6. Step 6: Final answer
   x = 13,343.95