Finding the Fourth Proportional to 13,103.55, 19,649.30 and 4,217.22

Step by Step Solution

1. Step 1: Write the proportion equation
   13,103.55 : 19,649.30 = 4,217.22 : x
2. Step 2: Convert to fraction form
   13,103.55/19,649.30 = 4,217.22/x
3. Step 3: Cross multiply
   13,103.55x = 19,649.30 × 4,217.22
4. Step 4: Simplify right side
   13,103.55x = 82,865,399.86
5. Step 5: Solve for x
   x = 82,865,399.86/13,103.55
6. Step 6: Final answer
   x = 6,323.89