Finding the Fourth Proportional to 13,341.91, 20,019.89 and 5,450.26

Step by Step Solution

1. Step 1: Write the proportion equation
   13,341.91 : 20,019.89 = 5,450.26 : x
2. Step 2: Convert to fraction form
   13,341.91/20,019.89 = 5,450.26/x
3. Step 3: Cross multiply
   13,341.91x = 20,019.89 × 5,450.26
4. Step 4: Simplify right side
   13,341.91x = 109,113,605.67
5. Step 5: Solve for x
   x = 109,113,605.67/13,341.91
6. Step 6: Final answer
   x = 8,178.26