Finding the Fourth Proportional to 6,672.05, 10,009.52 and 1,992.10

Step by Step Solution

1. Step 1: Write the proportion equation
   6,672.05 : 10,009.52 = 1,992.10 : x
2. Step 2: Convert to fraction form
   6,672.05/10,009.52 = 1,992.10/x
3. Step 3: Cross multiply
   6,672.05x = 10,009.52 × 1,992.10
4. Step 4: Simplify right side
   6,672.05x = 19,939,964.79
5. Step 5: Solve for x
   x = 19,939,964.79/6,672.05
6. Step 6: Final answer
   x = 2,988.58