Finding the Fourth Proportional to 16,718.18, 25,060.78 and 7,959.25

Step by Step Solution

1. Step 1: Write the proportion equation
   16,718.18 : 25,060.78 = 7,959.25 : x
2. Step 2: Convert to fraction form
   16,718.18/25,060.78 = 7,959.25/x
3. Step 3: Cross multiply
   16,718.18x = 25,060.78 × 7,959.25
4. Step 4: Simplify right side
   16,718.18x = 199,464,848.11
5. Step 5: Solve for x
   x = 199,464,848.11/16,718.18
6. Step 6: Final answer
   x = 11,931.01