Finding the Fourth Proportional to 11,467.05, 17,200.60 and 3,147.18

Step by Step Solution

1. Step 1: Write the proportion equation
   11,467.05 : 17,200.60 = 3,147.18 : x
2. Step 2: Convert to fraction form
   11,467.05/17,200.60 = 3,147.18/x
3. Step 3: Cross multiply
   11,467.05x = 17,200.60 × 3,147.18
4. Step 4: Simplify right side
   11,467.05x = 54,133,384.31
5. Step 5: Solve for x
   x = 54,133,384.31/11,467.05
6. Step 6: Final answer
   x = 4,720.78