Finding the Fourth Proportional to 16,789.78, 25,196.10 and 6,929.02

Step by Step Solution

1. Step 1: Write the proportion equation
   16,789.78 : 25,196.10 = 6,929.02 : x
2. Step 2: Convert to fraction form
   16,789.78/25,196.10 = 6,929.02/x
3. Step 3: Cross multiply
   16,789.78x = 25,196.10 × 6,929.02
4. Step 4: Simplify right side
   16,789.78x = 174,584,280.82
5. Step 5: Solve for x
   x = 174,584,280.82/16,789.78
6. Step 6: Final answer
   x = 10,398.25