Finding the Fourth Proportional to 13,289.21, 19,936.55 and 5,498.02

Step by Step Solution

1. Step 1: Write the proportion equation
   13,289.21 : 19,936.55 = 5,498.02 : x
2. Step 2: Convert to fraction form
   13,289.21/19,936.55 = 5,498.02/x
3. Step 3: Cross multiply
   13,289.21x = 19,936.55 × 5,498.02
4. Step 4: Simplify right side
   13,289.21x = 109,611,589.30
5. Step 5: Solve for x
   x = 109,611,589.30/13,289.21
6. Step 6: Final answer
   x = 8,248.17