Finding the Fourth Proportional to 13,667.33, 18,859.96 and 8,077.25

Step by Step Solution

1. Step 1: Write the proportion equation
   13,667.33 : 18,859.96 = 8,077.25 : x
2. Step 2: Convert to fraction form
   13,667.33/18,859.96 = 8,077.25/x
3. Step 3: Cross multiply
   13,667.33x = 18,859.96 × 8,077.25
4. Step 4: Simplify right side
   13,667.33x = 152,336,611.91
5. Step 5: Solve for x
   x = 152,336,611.91/13,667.33
6. Step 6: Final answer
   x = 11,146.04