Finding the Fourth Proportional to 13,301.38, 18,353.37 and 8,330.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,301.38 : 18,353.37 = 8,330.50 : x
2. Step 2: Convert to fraction form
   13,301.38/18,353.37 = 8,330.50/x
3. Step 3: Cross multiply
   13,301.38x = 18,353.37 × 8,330.50
4. Step 4: Simplify right side
   13,301.38x = 152,892,748.79
5. Step 5: Solve for x
   x = 152,892,748.79/13,301.38
6. Step 6: Final answer
   x = 11,494.50