Finding the Fourth Proportional to 13,003.03, 17,944.18 and 8,290.05

Step by Step Solution

1. Step 1: Write the proportion equation
   13,003.03 : 17,944.18 = 8,290.05 : x
2. Step 2: Convert to fraction form
   13,003.03/17,944.18 = 8,290.05/x
3. Step 3: Cross multiply
   13,003.03x = 17,944.18 × 8,290.05
4. Step 4: Simplify right side
   13,003.03x = 148,758,108.02
5. Step 5: Solve for x
   x = 148,758,108.02/13,003.03
6. Step 6: Final answer
   x = 11,440.26