Finding the Fourth Proportional to 73,662.63, 101,654.42 and 40,128.63

Step by Step Solution

1. Step 1: Write the proportion equation
   73,662.63 : 101,654.42 = 40,128.63 : x
2. Step 2: Convert to fraction form
   73,662.63/101,654.42 = 40,128.63/x
3. Step 3: Cross multiply
   73,662.63x = 101,654.42 × 40,128.63
4. Step 4: Simplify right side
   73,662.63x = 4,079,252,608.04
5. Step 5: Solve for x
   x = 4,079,252,608.04/73,662.63
6. Step 6: Final answer
   x = 55,377.50