Finding the Fourth Proportional to 11,852.86, 16,343.30 and 8,078.31

Step by Step Solution

1. Step 1: Write the proportion equation
   11,852.86 : 16,343.30 = 8,078.31 : x
2. Step 2: Convert to fraction form
   11,852.86/16,343.30 = 8,078.31/x
3. Step 3: Cross multiply
   11,852.86x = 16,343.30 × 8,078.31
4. Step 4: Simplify right side
   11,852.86x = 132,026,243.82
5. Step 5: Solve for x
   x = 132,026,243.82/11,852.86
6. Step 6: Final answer
   x = 11,138.77