Finding the Fourth Proportional to 42,238.25, 58,296.87 and 30,171.48

Step by Step Solution

1. Step 1: Write the proportion equation
   42,238.25 : 58,296.87 = 30,171.48 : x
2. Step 2: Convert to fraction form
   42,238.25/58,296.87 = 30,171.48/x
3. Step 3: Cross multiply
   42,238.25x = 58,296.87 × 30,171.48
4. Step 4: Simplify right side
   42,238.25x = 1,758,902,847.27
5. Step 5: Solve for x
   x = 1,758,902,847.27/42,238.25
6. Step 6: Final answer
   x = 41,642.42