Finding the Fourth Proportional to 16,993, 25,499.58 and 7,759.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,993 : 25,499.58 = 7,759.72 : x
2. Step 2: Convert to fraction form
   16,993/25,499.58 = 7,759.72/x
3. Step 3: Cross multiply
   16,993x = 25,499.58 × 7,759.72
4. Step 4: Simplify right side
   16,993x = 197,869,600.92
5. Step 5: Solve for x
   x = 197,869,600.92/16,993
6. Step 6: Final answer
   x = 11,644.18