Finding the Fourth Proportional to 16,808.15, 25,179.42 and 10,217.99

Step by Step Solution

1. Step 1: Write the proportion equation
   16,808.15 : 25,179.42 = 10,217.99 : x
2. Step 2: Convert to fraction form
   16,808.15/25,179.42 = 10,217.99/x
3. Step 3: Cross multiply
   16,808.15x = 25,179.42 × 10,217.99
4. Step 4: Simplify right side
   16,808.15x = 257,283,061.77
5. Step 5: Solve for x
   x = 257,283,061.77/16,808.15
6. Step 6: Final answer
   x = 15,307.04