Finding the Fourth Proportional to 10,080.68, 15,115.98 and 3,505.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,080.68 : 15,115.98 = 3,505.10 : x
2. Step 2: Convert to fraction form
   10,080.68/15,115.98 = 3,505.10/x
3. Step 3: Cross multiply
   10,080.68x = 15,115.98 × 3,505.10
4. Step 4: Simplify right side
   10,080.68x = 52,983,021.50
5. Step 5: Solve for x
   x = 52,983,021.50/10,080.68
6. Step 6: Final answer
   x = 5,255.90