Finding the Fourth Proportional to 13,200.50, 18,201.76 and 8,414.06

Step by Step Solution

1. Step 1: Write the proportion equation
   13,200.50 : 18,201.76 = 8,414.06 : x
2. Step 2: Convert to fraction form
   13,200.50/18,201.76 = 8,414.06/x
3. Step 3: Cross multiply
   13,200.50x = 18,201.76 × 8,414.06
4. Step 4: Simplify right side
   13,200.50x = 153,150,588.70
5. Step 5: Solve for x
   x = 153,150,588.70/13,200.50
6. Step 6: Final answer
   x = 11,601.88