Finding the Fourth Proportional to 13,326.05, 19,992.38 and 3,966.03

Step by Step Solution

1. Step 1: Write the proportion equation
   13,326.05 : 19,992.38 = 3,966.03 : x
2. Step 2: Convert to fraction form
   13,326.05/19,992.38 = 3,966.03/x
3. Step 3: Cross multiply
   13,326.05x = 19,992.38 × 3,966.03
4. Step 4: Simplify right side
   13,326.05x = 79,290,359.02
5. Step 5: Solve for x
   x = 79,290,359.02/13,326.05
6. Step 6: Final answer
   x = 5,950.03