Finding the Fourth Proportional to 11,608.31, 16,032.53 and 7,847

Step by Step Solution

1. Step 1: Write the proportion equation
   11,608.31 : 16,032.53 = 7,847 : x
2. Step 2: Convert to fraction form
   11,608.31/16,032.53 = 7,847/x
3. Step 3: Cross multiply
   11,608.31x = 16,032.53 × 7,847
4. Step 4: Simplify right side
   11,608.31x = 125,807,223.68
5. Step 5: Solve for x
   x = 125,807,223.68/11,608.31
6. Step 6: Final answer
   x = 10,837.69