Finding the Fourth Proportional to 13,667.36, 20,506.20 and 5,353.32

Step by Step Solution

1. Step 1: Write the proportion equation
   13,667.36 : 20,506.20 = 5,353.32 : x
2. Step 2: Convert to fraction form
   13,667.36/20,506.20 = 5,353.32/x
3. Step 3: Cross multiply
   13,667.36x = 20,506.20 × 5,353.32
4. Step 4: Simplify right side
   13,667.36x = 109,776,250.58
5. Step 5: Solve for x
   x = 109,776,250.58/13,667.36
6. Step 6: Final answer
   x = 8,032.00