Finding the Fourth Proportional to 11,672.87, 16,095.78 and 7,889.46

Step by Step Solution

1. Step 1: Write the proportion equation
   11,672.87 : 16,095.78 = 7,889.46 : x
2. Step 2: Convert to fraction form
   11,672.87/16,095.78 = 7,889.46/x
3. Step 3: Cross multiply
   11,672.87x = 16,095.78 × 7,889.46
4. Step 4: Simplify right side
   11,672.87x = 126,987,012.48
5. Step 5: Solve for x
   x = 126,987,012.48/11,672.87
6. Step 6: Final answer
   x = 10,878.82