Finding the Fourth Proportional to 11,851.89, 16,356.87 and 6,816.33

Step by Step Solution

1. Step 1: Write the proportion equation
   11,851.89 : 16,356.87 = 6,816.33 : x
2. Step 2: Convert to fraction form
   11,851.89/16,356.87 = 6,816.33/x
3. Step 3: Cross multiply
   11,851.89x = 16,356.87 × 6,816.33
4. Step 4: Simplify right side
   11,851.89x = 111,493,823.69
5. Step 5: Solve for x
   x = 111,493,823.69/11,851.89
6. Step 6: Final answer
   x = 9,407.26