Finding the Fourth Proportional to 42,078.25, 58,057.60 and 25,721.26

Step by Step Solution

1. Step 1: Write the proportion equation
   42,078.25 : 58,057.60 = 25,721.26 : x
2. Step 2: Convert to fraction form
   42,078.25/58,057.60 = 25,721.26/x
3. Step 3: Cross multiply
   42,078.25x = 58,057.60 × 25,721.26
4. Step 4: Simplify right side
   42,078.25x = 1,493,314,624.58
5. Step 5: Solve for x
   x = 1,493,314,624.58/42,078.25
6. Step 6: Final answer
   x = 35,488.99