Finding the Fourth Proportional to 11,822.31, 16,323.12 and 7,851.69

Step by Step Solution

1. Step 1: Write the proportion equation
   11,822.31 : 16,323.12 = 7,851.69 : x
2. Step 2: Convert to fraction form
   11,822.31/16,323.12 = 7,851.69/x
3. Step 3: Cross multiply
   11,822.31x = 16,323.12 × 7,851.69
4. Step 4: Simplify right side
   11,822.31x = 128,164,078.07
5. Step 5: Solve for x
   x = 128,164,078.07/11,822.31
6. Step 6: Final answer
   x = 10,840.87