Finding the Fourth Proportional to 35,768.47, 53,662.27 and 12,394.91

Step by Step Solution

1. Step 1: Write the proportion equation
   35,768.47 : 53,662.27 = 12,394.91 : x
2. Step 2: Convert to fraction form
   35,768.47/53,662.27 = 12,394.91/x
3. Step 3: Cross multiply
   35,768.47x = 53,662.27 × 12,394.91
4. Step 4: Simplify right side
   35,768.47x = 665,139,007.05
5. Step 5: Solve for x
   x = 665,139,007.05/35,768.47
6. Step 6: Final answer
   x = 18,595.68