Finding the Fourth Proportional to 42,034.55, 58,011.75 and 31,405.73

Step by Step Solution

1. Step 1: Write the proportion equation
   42,034.55 : 58,011.75 = 31,405.73 : x
2. Step 2: Convert to fraction form
   42,034.55/58,011.75 = 31,405.73/x
3. Step 3: Cross multiply
   42,034.55x = 58,011.75 × 31,405.73
4. Step 4: Simplify right side
   42,034.55x = 1,821,901,067.27
5. Step 5: Solve for x
   x = 1,821,901,067.27/42,034.55
6. Step 6: Final answer
   x = 43,342.95