Finding the Fourth Proportional to 13,649.30, 20,469.83 and 5,327.06

Step by Step Solution

1. Step 1: Write the proportion equation
   13,649.30 : 20,469.83 = 5,327.06 : x
2. Step 2: Convert to fraction form
   13,649.30/20,469.83 = 5,327.06/x
3. Step 3: Cross multiply
   13,649.30x = 20,469.83 × 5,327.06
4. Step 4: Simplify right side
   13,649.30x = 109,044,037.14
5. Step 5: Solve for x
   x = 109,044,037.14/13,649.30
6. Step 6: Final answer
   x = 7,988.99