Finding the Fourth Proportional to 13,241.34, 19,846.89 and 5,440.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,241.34 : 19,846.89 = 5,440.50 : x
2. Step 2: Convert to fraction form
   13,241.34/19,846.89 = 5,440.50/x
3. Step 3: Cross multiply
   13,241.34x = 19,846.89 × 5,440.50
4. Step 4: Simplify right side
   13,241.34x = 107,977,005.05
5. Step 5: Solve for x
   x = 107,977,005.05/13,241.34
6. Step 6: Final answer
   x = 8,154.54