Finding the Fourth Proportional to 16,805.85, 25,201.47 and 5,116.33

Step by Step Solution

1. Step 1: Write the proportion equation
   16,805.85 : 25,201.47 = 5,116.33 : x
2. Step 2: Convert to fraction form
   16,805.85/25,201.47 = 5,116.33/x
3. Step 3: Cross multiply
   16,805.85x = 25,201.47 × 5,116.33
4. Step 4: Simplify right side
   16,805.85x = 128,939,037.01
5. Step 5: Solve for x
   x = 128,939,037.01/16,805.85
6. Step 6: Final answer
   x = 7,672.27