Finding the Fourth Proportional to 16,780.83, 25,155.52 and 5,679.75

Step by Step Solution

1. Step 1: Write the proportion equation
   16,780.83 : 25,155.52 = 5,679.75 : x
2. Step 2: Convert to fraction form
   16,780.83/25,155.52 = 5,679.75/x
3. Step 3: Cross multiply
   16,780.83x = 25,155.52 × 5,679.75
4. Step 4: Simplify right side
   16,780.83x = 142,877,064.72
5. Step 5: Solve for x
   x = 142,877,064.72/16,780.83
6. Step 6: Final answer
   x = 8,514.30