Finding the Fourth Proportional to 41,689.02, 62,517.78 and 13,602.42

Step by Step Solution

1. Step 1: Write the proportion equation
   41,689.02 : 62,517.78 = 13,602.42 : x
2. Step 2: Convert to fraction form
   41,689.02/62,517.78 = 13,602.42/x
3. Step 3: Cross multiply
   41,689.02x = 62,517.78 × 13,602.42
4. Step 4: Simplify right side
   41,689.02x = 850,393,101.03
5. Step 5: Solve for x
   x = 850,393,101.03/41,689.02
6. Step 6: Final answer
   x = 20,398.49