Finding the Fourth Proportional to 13,317.27, 18,377.85 and 8,281.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,317.27 : 18,377.85 = 8,281.50 : x
2. Step 2: Convert to fraction form
   13,317.27/18,377.85 = 8,281.50/x
3. Step 3: Cross multiply
   13,317.27x = 18,377.85 × 8,281.50
4. Step 4: Simplify right side
   13,317.27x = 152,196,164.78
5. Step 5: Solve for x
   x = 152,196,164.78/13,317.27
6. Step 6: Final answer
   x = 11,428.48