Finding the Fourth Proportional to 42,615.72, 58,791.42 and 25,615.44

Step by Step Solution

1. Step 1: Write the proportion equation
   42,615.72 : 58,791.42 = 25,615.44 : x
2. Step 2: Convert to fraction form
   42,615.72/58,791.42 = 25,615.44/x
3. Step 3: Cross multiply
   42,615.72x = 58,791.42 × 25,615.44
4. Step 4: Simplify right side
   42,615.72x = 1,505,968,091.52
5. Step 5: Solve for x
   x = 1,505,968,091.52/42,615.72
6. Step 6: Final answer
   x = 35,338.32