Finding the Fourth Proportional to 7,003.26, 10,503.42 and 3,105.18

Step by Step Solution

1. Step 1: Write the proportion equation
   7,003.26 : 10,503.42 = 3,105.18 : x
2. Step 2: Convert to fraction form
   7,003.26/10,503.42 = 3,105.18/x
3. Step 3: Cross multiply
   7,003.26x = 10,503.42 × 3,105.18
4. Step 4: Simplify right side
   7,003.26x = 32,615,009.72
5. Step 5: Solve for x
   x = 32,615,009.72/7,003.26
6. Step 6: Final answer
   x = 4,657.12