Finding the Fourth Proportional to 16,978.84, 25,469.40 and 4,498.70

Step by Step Solution

1. Step 1: Write the proportion equation
   16,978.84 : 25,469.40 = 4,498.70 : x
2. Step 2: Convert to fraction form
   16,978.84/25,469.40 = 4,498.70/x
3. Step 3: Cross multiply
   16,978.84x = 25,469.40 × 4,498.70
4. Step 4: Simplify right side
   16,978.84x = 114,579,062.43
5. Step 5: Solve for x
   x = 114,579,062.43/16,978.84
6. Step 6: Final answer
   x = 6,748.35