Finding the Fourth Proportional to 42,940.72, 59,253.24 and 25,955.20

Step by Step Solution

1. Step 1: Write the proportion equation
   42,940.72 : 59,253.24 = 25,955.20 : x
2. Step 2: Convert to fraction form
   42,940.72/59,253.24 = 25,955.20/x
3. Step 3: Cross multiply
   42,940.72x = 59,253.24 × 25,955.20
4. Step 4: Simplify right side
   42,940.72x = 1,537,929,694.85
5. Step 5: Solve for x
   x = 1,537,929,694.85/42,940.72
6. Step 6: Final answer
   x = 35,815.18