Finding the Fourth Proportional to 16,978.11, 25,464.38 and 4,498.91

Step by Step Solution

1. Step 1: Write the proportion equation
   16,978.11 : 25,464.38 = 4,498.91 : x
2. Step 2: Convert to fraction form
   16,978.11/25,464.38 = 4,498.91/x
3. Step 3: Cross multiply
   16,978.11x = 25,464.38 × 4,498.91
4. Step 4: Simplify right side
   16,978.11x = 114,561,899.50
5. Step 5: Solve for x
   x = 114,561,899.50/16,978.11
6. Step 6: Final answer
   x = 6,747.63