Finding the Fourth Proportional to 11,412.42, 17,119.25 and 3,520.37

Step by Step Solution

1. Step 1: Write the proportion equation
   11,412.42 : 17,119.25 = 3,520.37 : x
2. Step 2: Convert to fraction form
   11,412.42/17,119.25 = 3,520.37/x
3. Step 3: Cross multiply
   11,412.42x = 17,119.25 × 3,520.37
4. Step 4: Simplify right side
   11,412.42x = 60,266,094.12
5. Step 5: Solve for x
   x = 60,266,094.12/11,412.42
6. Step 6: Final answer
   x = 5,280.75