Finding the Fourth Proportional to 16,180.31, 22,335.71 and 10,878.20

Step by Step Solution

1. Step 1: Write the proportion equation
   16,180.31 : 22,335.71 = 10,878.20 : x
2. Step 2: Convert to fraction form
   16,180.31/22,335.71 = 10,878.20/x
3. Step 3: Cross multiply
   16,180.31x = 22,335.71 × 10,878.20
4. Step 4: Simplify right side
   16,180.31x = 242,972,320.52
5. Step 5: Solve for x
   x = 242,972,320.52/16,180.31
6. Step 6: Final answer
   x = 15,016.54