Finding the Fourth Proportional to 42,780.54, 59,044.77 and 25,787.82

Step by Step Solution

1. Step 1: Write the proportion equation
   42,780.54 : 59,044.77 = 25,787.82 : x
2. Step 2: Convert to fraction form
   42,780.54/59,044.77 = 25,787.82/x
3. Step 3: Cross multiply
   42,780.54x = 59,044.77 × 25,787.82
4. Step 4: Simplify right side
   42,780.54x = 1,522,635,900.70
5. Step 5: Solve for x
   x = 1,522,635,900.70/42,780.54
6. Step 6: Final answer
   x = 35,591.79