Finding the Fourth Proportional to 30,055.80, 41,357.42 and 29,142.72

Step by Step Solution

1. Step 1: Write the proportion equation
   30,055.80 : 41,357.42 = 29,142.72 : x
2. Step 2: Convert to fraction form
   30,055.80/41,357.42 = 29,142.72/x
3. Step 3: Cross multiply
   30,055.80x = 41,357.42 × 29,142.72
4. Step 4: Simplify right side
   30,055.80x = 1,205,267,710.98
5. Step 5: Solve for x
   x = 1,205,267,710.98/30,055.80
6. Step 6: Final answer
   x = 40,101.00