Finding the Fourth Proportional to 13,189.06, 19,783.54 and 3,328.42

Step by Step Solution

1. Step 1: Write the proportion equation
   13,189.06 : 19,783.54 = 3,328.42 : x
2. Step 2: Convert to fraction form
   13,189.06/19,783.54 = 3,328.42/x
3. Step 3: Cross multiply
   13,189.06x = 19,783.54 × 3,328.42
4. Step 4: Simplify right side
   13,189.06x = 65,847,930.21
5. Step 5: Solve for x
   x = 65,847,930.21/13,189.06
6. Step 6: Final answer
   x = 4,992.62