Finding the Fourth Proportional to 16,801.98, 25,204.37 and 5,115.30

Step by Step Solution

1. Step 1: Write the proportion equation
   16,801.98 : 25,204.37 = 5,115.30 : x
2. Step 2: Convert to fraction form
   16,801.98/25,204.37 = 5,115.30/x
3. Step 3: Cross multiply
   16,801.98x = 25,204.37 × 5,115.30
4. Step 4: Simplify right side
   16,801.98x = 128,927,888.28
5. Step 5: Solve for x
   x = 128,927,888.28/16,801.98
6. Step 6: Final answer
   x = 7,673.37