Finding the Fourth Proportional to 42,005.52, 58,044.72 and 31,371.84

Step by Step Solution

1. Step 1: Write the proportion equation
   42,005.52 : 58,044.72 = 31,371.84 : x
2. Step 2: Convert to fraction form
   42,005.52/58,044.72 = 31,371.84/x
3. Step 3: Cross multiply
   42,005.52x = 58,044.72 × 31,371.84
4. Step 4: Simplify right side
   42,005.52x = 1,820,969,668.68
5. Step 5: Solve for x
   x = 1,820,969,668.68/42,005.52
6. Step 6: Final answer
   x = 43,350.72