Finding the Fourth Proportional to 13,209.34, 19,818.24 and 3,849.92

Step by Step Solution

1. Step 1: Write the proportion equation
   13,209.34 : 19,818.24 = 3,849.92 : x
2. Step 2: Convert to fraction form
   13,209.34/19,818.24 = 3,849.92/x
3. Step 3: Cross multiply
   13,209.34x = 19,818.24 × 3,849.92
4. Step 4: Simplify right side
   13,209.34x = 76,298,638.54
5. Step 5: Solve for x
   x = 76,298,638.54/13,209.34
6. Step 6: Final answer
   x = 5,776.11