Finding the Fourth Proportional to 16,699.89, 25,015.82 and 7,908.15

Step by Step Solution

1. Step 1: Write the proportion equation
   16,699.89 : 25,015.82 = 7,908.15 : x
2. Step 2: Convert to fraction form
   16,699.89/25,015.82 = 7,908.15/x
3. Step 3: Cross multiply
   16,699.89x = 25,015.82 × 7,908.15
4. Step 4: Simplify right side
   16,699.89x = 197,828,817.39
5. Step 5: Solve for x
   x = 197,828,817.39/16,699.89
6. Step 6: Final answer
   x = 11,846.11