Finding the Fourth Proportional to 13,093.30, 19,641.60 and 4,209.22

Step by Step Solution

1. Step 1: Write the proportion equation
   13,093.30 : 19,641.60 = 4,209.22 : x
2. Step 2: Convert to fraction form
   13,093.30/19,641.60 = 4,209.22/x
3. Step 3: Cross multiply
   13,093.30x = 19,641.60 × 4,209.22
4. Step 4: Simplify right side
   13,093.30x = 82,675,815.55
5. Step 5: Solve for x
   x = 82,675,815.55/13,093.30
6. Step 6: Final answer
   x = 6,314.36