Finding the Fourth Proportional to 11,342.43, 17,014.31 and 3,445.20

Step by Step Solution

1. Step 1: Write the proportion equation
   11,342.43 : 17,014.31 = 3,445.20 : x
2. Step 2: Convert to fraction form
   11,342.43/17,014.31 = 3,445.20/x
3. Step 3: Cross multiply
   11,342.43x = 17,014.31 × 3,445.20
4. Step 4: Simplify right side
   11,342.43x = 58,617,683.59
5. Step 5: Solve for x
   x = 58,617,683.59/11,342.43
6. Step 6: Final answer
   x = 5,168.00