Finding the Fourth Proportional to 6,672.76, 10,010.56 and 1,992.72

Step by Step Solution

1. Step 1: Write the proportion equation
   6,672.76 : 10,010.56 = 1,992.72 : x
2. Step 2: Convert to fraction form
   6,672.76/10,010.56 = 1,992.72/x
3. Step 3: Cross multiply
   6,672.76x = 10,010.56 × 1,992.72
4. Step 4: Simplify right side
   6,672.76x = 19,948,243.12
5. Step 5: Solve for x
   x = 19,948,243.12/6,672.76
6. Step 6: Final answer
   x = 2,989.50