Finding the Fourth Proportional to 13,667.48, 20,506.39 and 5,353.44

Step by Step Solution

1. Step 1: Write the proportion equation
   13,667.48 : 20,506.39 = 5,353.44 : x
2. Step 2: Convert to fraction form
   13,667.48/20,506.39 = 5,353.44/x
3. Step 3: Cross multiply
   13,667.48x = 20,506.39 × 5,353.44
4. Step 4: Simplify right side
   13,667.48x = 109,779,715.10
5. Step 5: Solve for x
   x = 109,779,715.10/13,667.48
6. Step 6: Final answer
   x = 8,032.18