Finding the Fourth Proportional to 42,860.36, 59,137.74 and 25,867.37

Step by Step Solution

1. Step 1: Write the proportion equation
   42,860.36 : 59,137.74 = 25,867.37 : x
2. Step 2: Convert to fraction form
   42,860.36/59,137.74 = 25,867.37/x
3. Step 3: Cross multiply
   42,860.36x = 59,137.74 × 25,867.37
4. Step 4: Simplify right side
   42,860.36x = 1,529,737,505.86
5. Step 5: Solve for x
   x = 1,529,737,505.86/42,860.36
6. Step 6: Final answer
   x = 35,691.20