Finding the Fourth Proportional to 11,856.73, 16,359.92 and 7,141.32

Step by Step Solution

1. Step 1: Write the proportion equation
   11,856.73 : 16,359.92 = 7,141.32 : x
2. Step 2: Convert to fraction form
   11,856.73/16,359.92 = 7,141.32/x
3. Step 3: Cross multiply
   11,856.73x = 16,359.92 × 7,141.32
4. Step 4: Simplify right side
   11,856.73x = 116,831,342.09
5. Step 5: Solve for x
   x = 116,831,342.09/11,856.73
6. Step 6: Final answer
   x = 9,853.59