Finding the Fourth Proportional to 10,892.48, 16,316.82 and 9,219.42

Step by Step Solution

1. Step 1: Write the proportion equation
   10,892.48 : 16,316.82 = 9,219.42 : x
2. Step 2: Convert to fraction form
   10,892.48/16,316.82 = 9,219.42/x
3. Step 3: Cross multiply
   10,892.48x = 16,316.82 × 9,219.42
4. Step 4: Simplify right side
   10,892.48x = 150,431,616.64
5. Step 5: Solve for x
   x = 150,431,616.64/10,892.48
6. Step 6: Final answer
   x = 13,810.60