Finding the Fourth Proportional to 13,305.50, 18,361.33 and 7,337.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,305.50 : 18,361.33 = 7,337.72 : x
2. Step 2: Convert to fraction form
   13,305.50/18,361.33 = 7,337.72/x
3. Step 3: Cross multiply
   13,305.50x = 18,361.33 × 7,337.72
4. Step 4: Simplify right side
   13,305.50x = 134,730,188.22
5. Step 5: Solve for x
   x = 134,730,188.22/13,305.50
6. Step 6: Final answer
   x = 10,125.91