Finding the Fourth Proportional to 42,661.98, 58,863.51 and 25,891.74

Step by Step Solution

1. Step 1: Write the proportion equation
   42,661.98 : 58,863.51 = 25,891.74 : x
2. Step 2: Convert to fraction form
   42,661.98/58,863.51 = 25,891.74/x
3. Step 3: Cross multiply
   42,661.98x = 58,863.51 × 25,891.74
4. Step 4: Simplify right side
   42,661.98x = 1,524,078,696.41
5. Step 5: Solve for x
   x = 1,524,078,696.41/42,661.98
6. Step 6: Final answer
   x = 35,724.52