Finding the Fourth Proportional to 13,300.71, 18,351.67 and 8,453.67

Step by Step Solution

1. Step 1: Write the proportion equation
   13,300.71 : 18,351.67 = 8,453.67 : x
2. Step 2: Convert to fraction form
   13,300.71/18,351.67 = 8,453.67/x
3. Step 3: Cross multiply
   13,300.71x = 18,351.67 × 8,453.67
4. Step 4: Simplify right side
   13,300.71x = 155,139,025.66
5. Step 5: Solve for x
   x = 155,139,025.66/13,300.71
6. Step 6: Final answer
   x = 11,663.96