Finding the Fourth Proportional to 13,200.62, 19,793.55 and 5,414.90

Step by Step Solution

1. Step 1: Write the proportion equation
   13,200.62 : 19,793.55 = 5,414.90 : x
2. Step 2: Convert to fraction form
   13,200.62/19,793.55 = 5,414.90/x
3. Step 3: Cross multiply
   13,200.62x = 19,793.55 × 5,414.90
4. Step 4: Simplify right side
   13,200.62x = 107,180,093.90
5. Step 5: Solve for x
   x = 107,180,093.90/13,200.62
6. Step 6: Final answer
   x = 8,119.32