Finding the Fourth Proportional to 3,507.36, 5,250.72 and 3,276.60

Step by Step Solution

1. Step 1: Write the proportion equation
   3,507.36 : 5,250.72 = 3,276.60 : x
2. Step 2: Convert to fraction form
   3,507.36/5,250.72 = 3,276.60/x
3. Step 3: Cross multiply
   3,507.36x = 5,250.72 × 3,276.60
4. Step 4: Simplify right side
   3,507.36x = 17,204,509.15
5. Step 5: Solve for x
   x = 17,204,509.15/3,507.36
6. Step 6: Final answer
   x = 4,905.26