Finding the Fourth Proportional to 42,828.81, 59,120.76 and 29,034.31

Step by Step Solution

1. Step 1: Write the proportion equation
   42,828.81 : 59,120.76 = 29,034.31 : x
2. Step 2: Convert to fraction form
   42,828.81/59,120.76 = 29,034.31/x
3. Step 3: Cross multiply
   42,828.81x = 59,120.76 × 29,034.31
4. Step 4: Simplify right side
   42,828.81x = 1,716,530,473.28
5. Step 5: Solve for x
   x = 1,716,530,473.28/42,828.81
6. Step 6: Final answer
   x = 40,078.87