Finding the Fourth Proportional to 35,623.59, 53,434.77 and 12,249.42

Step by Step Solution

1. Step 1: Write the proportion equation
   35,623.59 : 53,434.77 = 12,249.42 : x
2. Step 2: Convert to fraction form
   35,623.59/53,434.77 = 12,249.42/x
3. Step 3: Cross multiply
   35,623.59x = 53,434.77 × 12,249.42
4. Step 4: Simplify right side
   35,623.59x = 654,544,940.33
5. Step 5: Solve for x
   x = 654,544,940.33/35,623.59
6. Step 6: Final answer
   x = 18,373.92