Finding the Fourth Proportional to 13,853.33, 19,124.72 and 8,189.81

Step by Step Solution

1. Step 1: Write the proportion equation
   13,853.33 : 19,124.72 = 8,189.81 : x
2. Step 2: Convert to fraction form
   13,853.33/19,124.72 = 8,189.81/x
3. Step 3: Cross multiply
   13,853.33x = 19,124.72 × 8,189.81
4. Step 4: Simplify right side
   13,853.33x = 156,627,835.03
5. Step 5: Solve for x
   x = 156,627,835.03/13,853.33
6. Step 6: Final answer
   x = 11,306.15