Finding the Fourth Proportional to 10,992, 15,168.72 and 6,276

Step by Step Solution

1. Step 1: Write the proportion equation
   10,992 : 15,168.72 = 6,276 : x
2. Step 2: Convert to fraction form
   10,992/15,168.72 = 6,276/x
3. Step 3: Cross multiply
   10,992x = 15,168.72 × 6,276
4. Step 4: Simplify right side
   10,992x = 95,198,886.72
5. Step 5: Solve for x
   x = 95,198,886.72/10,992
6. Step 6: Final answer
   x = 8,660.74