Finding the Fourth Proportional to 35,654.62, 49,187.92 and 21,499.60

Step by Step Solution

1. Step 1: Write the proportion equation
   35,654.62 : 49,187.92 = 21,499.60 : x
2. Step 2: Convert to fraction form
   35,654.62/49,187.92 = 21,499.60/x
3. Step 3: Cross multiply
   35,654.62x = 49,187.92 × 21,499.60
4. Step 4: Simplify right side
   35,654.62x = 1,057,520,604.83
5. Step 5: Solve for x
   x = 1,057,520,604.83/35,654.62
6. Step 6: Final answer
   x = 29,660.13