Finding the Fourth Proportional to 16,768.18, 25,156.16 and 4,921.47

Step by Step Solution

1. Step 1: Write the proportion equation
   16,768.18 : 25,156.16 = 4,921.47 : x
2. Step 2: Convert to fraction form
   16,768.18/25,156.16 = 4,921.47/x
3. Step 3: Cross multiply
   16,768.18x = 25,156.16 × 4,921.47
4. Step 4: Simplify right side
   16,768.18x = 123,805,286.76
5. Step 5: Solve for x
   x = 123,805,286.76/16,768.18
6. Step 6: Final answer
   x = 7,383.35