Finding the Fourth Proportional to 12,435.50, 17,164.60 and 7,403.24

Step by Step Solution

1. Step 1: Write the proportion equation
   12,435.50 : 17,164.60 = 7,403.24 : x
2. Step 2: Convert to fraction form
   12,435.50/17,164.60 = 7,403.24/x
3. Step 3: Cross multiply
   12,435.50x = 17,164.60 × 7,403.24
4. Step 4: Simplify right side
   12,435.50x = 127,073,653.30
5. Step 5: Solve for x
   x = 127,073,653.30/12,435.50
6. Step 6: Final answer
   x = 10,218.62