Finding the Fourth Proportional to 19,822.05, 29,674.76 and 13,231.89

Step by Step Solution

1. Step 1: Write the proportion equation
   19,822.05 : 29,674.76 = 13,231.89 : x
2. Step 2: Convert to fraction form
   19,822.05/29,674.76 = 13,231.89/x
3. Step 3: Cross multiply
   19,822.05x = 29,674.76 × 13,231.89
4. Step 4: Simplify right side
   19,822.05x = 392,653,271.38
5. Step 5: Solve for x
   x = 392,653,271.38/19,822.05
6. Step 6: Final answer
   x = 19,808.91